34. Troubleshooting#

I start FS One and my whole screen is filled with what looks like the lower left quadrant of FS One.

I cannot make selections with my mouse.

When I start FS One, a black window comes up, then disappears, and then nothing else happens. Or my screen flashes.

I have a Jeti radio and can calibrate. But after calibration, FS One still shows: NOT CALIBRATED.

When I try to fly in FS One, the aircraft makes sound but does not move.

FS One was working, but now the controls do not move.

I would like to go back to the default install settings used in the Options menu.

What controls does my current aircraft have? How do I get to the Flight Manual?

My transmitter sticks or switches do the wrong thing.

How do I stop flying?

How do I get back to a previous screen?

How do I pick a different aircraft, flying site, etc.?

I typed in a number, but the old one came back.

How can I get help?

How can I get help, while flying?


I start FS One and my whole screen is filled with what looks like the lower left quadrant of FS One.

This is also the answer to: “I cannot make selections with my mouse.”

If you are running a 4k montitor or some other type of high resolution monitor, this will apply.

Option #1: Use 100% Font Magnification. Set it in the Windows Control Panel. Look for “Display” and then “Scale and Layout”. If you are not running at 100%, then the mouse will be offset. Set your computer to run at 100% or else you will not be able to interact with FS One. It is mentioned in the Getting Started section. If you get stuck not using 100% font magnification, you can click to “End Task” in the Task Manager. Then set your font to 100% and restart FS One.

Option #2: This approach is a one time setting change. If the change works on your system, it is better than Option #1 above.

Find the FS_One.exe program in the installation folder. It will likely be located here:

C:\Program Files (x86)\FS One 2022

Right click on the FS_One.exe program and select “Properties” to get the Properties screen (first image below). Then click on the “Compatibility” tab and click on the “Change high DPI settings” button (second image). A new screen then pops up (third image). Check “Use this setting to fix scaling problems …” and also check “Override high DPI scaling behavior.” In the selection box, use “Application”. Click “OK” on each window to save and close your new setting for running FS_One.exe. Now when you run the sim, the window should be scaled properly.

Further, if you have Administrator privileges on your Windows system, under the “Compatibility” tab (second image), you can choose “Change settings for all users” and apply the same settings.

Image showing the app property screen.
Image showing compatiblity screen.
Image showing dpi settings to select.
When I start FS One, a black window comes up, then disappears, and then nothing else happens. Or my screen flashes.

Download and install the latest graphics card driver for your computer from either https://www.amd.com or https://www.nvidia.com.

I have a Jeti radio and can calibrate. But after calibration, FS One still shows: NOT CALIBRATED.

You are making a direct connection to FS One and not using vJoy/JG for remapping: The problem is how FS One interacts with your Jeti USB interface name. Jeti uses a “/” character in the name. That slash is the special path character in Windows, and FS One tries to save the calibration file to a folder named “Jeti DC” that does not exist. The problem can be easily solved by creating (as Administrator) a folder named “Jeti DC” in the FS One “Calibrations” folder. The instructions to create the folder “Jeti DC” are below. The first image shows the Jeti USB joystick name with the “/” character. The next two images show how to run the Windows PowerShell as Administrator (right click and select the “Run as administrator”. The screenshot is from Windows 10. Then in your blue command window, type what you see below to get into the FS One “Calibrations” folder. Then use the “mkdir” command as shown to make the folder “Jeti DC”. Alternatively, log into your computer as Administrator and make the folder using Windows File Explorer. When complete, you should see the “Jeti DC” folder when you browse to it using Windows Explorer. After restarting and calibrating again in FS One, the calibration file should be saved to the “Jeti DC” folder, with a name like that shown below.

Image showing the name of the Jeti joystick device (via joy.cpl)

Windows Game Controller showing the name of the Jeti USB joystick device (joy.cpl).#

Image showing how to start up the Windows 10 PowerShell

Right click to start the Windows PowerShell as Administrator.#

Image showing the commands to make the "Jeti DC" folder.  They are cd "..\..\Program Files (x86)\", then cd ".\FS One 2022\", then cd ".\RadioEquip\", then cd ".\Calibrations\", then mkdir "Jeti DC".

Commands to make the “Jeti DC” folder inside the FS One “Calibrations” folder.#

Image showing the "Jeti DC" folder that was created.

The “Jeti DC” folder shows up after being created as Administrator.#

Image showing a sample name of the Jeti calibration file after calibrating inside FS One.

The calibration file appears after successful calibration in FS One.#

When I try to fly in FS One, the aircraft makes sound but does not move.

The aircraft is being reset continuously because a switch on your transmitter has been assigned to control Reset-To-Home and Reset-In-Place, and the switch is not in the right position for your setup.

FS One was working, but now the controls do not move.

The calibration file was not saved because the base software or its updates were not all installed as Administrator. Reinstall as Administrator whatever you installed last (either the full simulator or the latest update). This sequence of events happens when you do not install as Administrator : You run FS One and calibrate. That calibration data is saved in memory for that session and the simulator will work. But because the software was not installed as Administrator the software is not able to save the calibration file to disk. Then the next time you run FS One, there is no calibration data, so the control surfaces do not respond to your stick inputs.

I would like to go back to the default install settings used in the Options menu.

Follow these steps:

  • To reset the options back to the default install settings, start FS One.

  • Go to Options | Messages.

  • Click on the box for Use Default Options Upon Shutdown.

  • Exit and restart FS One. Note: This will restore the FS One settings to those when originally installed. This will not, however, remove or change any edited aircraft or transmitters or change the calibration of your USB Interface.

What controls does my current aircraft have?

Depending on what your flying, see the flight manual for airplanes . To jump right to your aircraft, click on the Flight Manual button in FS One from the Aircraft Selection window. The same Flight Manual button is on the Single Pilot Freestyle window.

My transmitter sticks or switches do the wrong thing.

Recalibrate your transmitter. If you are using Joystick Gremlin (JG) and vJoy, be sure that you have clicked on the JR gamepad icon to make it green, i.e. active.

How do I stop flying? (stop a flight session)

At the top left of your keyboard, press Esc .

How do I get back to a previous screen?

Click on Back, usually at bottom left. Or, at top right, click on Return to Main Menu.

How do I pick a different aircraft, flying site, etc.?

Click on the picture of what you want to change. Or, at left click, on the word of what you want to change.

I typed in a number, but the old one came back.

Most numbers have a range of allowable values. Invalid numbers, e.g. -10 lb for aircraft weight, are ignored. The previous value is then used.

How can I get help? (help from this user manual)

To get online help for whatever window you are in, at top right click on

Help button icon image
How can I get help while flying?

Press ? (bottom right of your keyboard; do down hold not shift). Just press the key with the question mark on it. If you cannot read while flying, also press P to pause the flight. Press P again to resume flying. The on-screen help overlay images are usually out of date. See the key commands chapter for up-to-date information.