TrackIR Pro 4 & Flight Sim X jumpy screen

[Darwin]

Hi there, I'm running the latest version of the Track IR software (v4.1 build 30) for my TrackIR Pro 4 and I have a profile installed for Flight Sim X. When inside the cockpit or when using some of the external views, the screen is very jumpy even when I sit perfectly still. I have turned the 'Smoothing' setting all the way up to 100 but it hasn't solved the problem. I should mention I don't have this problem in other games such as GTR2 and RACE. Other than this small problem, I think it's a great product and look forward to future developments. Thanks for any assistance you can give...

[VincentG]

What version of Windows?

Are you running any Anti-virus/Firewall software?

In the following folder location, C:\Program Files\NaturalPoint\TrackIR4\Profiles, what is the file size for each profile?

Have you made any changes to the system recently?

[Darwin]

Sorry should have given more info in my original post.
I'm running XP Service Pack 2
Anti-virus is AVGFree with the standard XP firewall enabled
I have 4 profiles: Flight (4KB), Racing (2KB), Default_Profile (4KB) and Combat_Flight (2KB)
I have made one change to the system. I purchased a new Saitek X52 Pro to replace my aging Logitech Wingman 3D joystick. It could perhaps be an issue with the drivers for the new hardware?
I have the TrackIR unit plugged directly into it's own USB2 port while the joystick is plugged into a USB1 hub.

[VincentG]

Any add-on applications installed for FSX?

You could try increasing the "Set Priority" for the TrackIR software, within the Task Manager -> Processes Tab -> Right click on the TrackIR.exe file -> Set Priority to AboveNormal....

TrackIR software, View -> Tracking, just 3 green on the screen? no red?

[Darwin]

Thanks for the help. No, I've no add-on's installed, just FSX and Service Pack 1.
I've increased the priority for the TrackIR software, alas no joy! (I've a decent enough system, Core 2 Duo E6600, 4GB RAM, 8800GTS, latest Nvidia drivers).
The tracking shows no red, only three green dots. Do you think a re-install of FSX would help?

[VincentG]

Try opening the profile being used for FSX, and select the deadzone settings, for the curve axis.

[Darwin]

Hi again, I've edited the curve for the Y-axis - I think there's a slight improvement, but the screen still jumps (about once a second) when I keep my head perfectly still.

[VincentG]

Have you tried a clean install of the TrackIR software?

Does this happen if you use the flight profile within FSX?

[Darwin]

Sorry for the delay - being playing a little too much Bioshock!

I tried a clean install of TrackIR4 but the problem remains.
I'm using the default flight profile associated with FSX from the TrackIR software Profiles tab.

I'm not sure how to configure a profile from within FSX? For example, under FSX Settings->Controls, there is a Calibration tab. I have 3 controllers listed in the combo box: Mouse Yoke, Mouse Look and my X52 joystick.

[VincentG]

Does this also occur if you select the Default profile to exclusively load?