Jumpy screen with throttles

[Coolcat]

Hiya

When my plane is sitting still on the runway, trackir is perfect.. Then when I open my throttle's for take off the thing starts jumping around out of control, not possible to continue to fly

I have FS2004 ver 9.1
TrackIR Pro
CH Flight Yoke (With Throttle)

Any help?

Cheers

[VincentG]

Are you using the standard aircraft?

Any add-on applications installed?

What OS are you using?