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Hi
I'm running vista 32 bit with latest drivers etc. Avast antivirus.
Machine is a E6700 dual core with 2 gig top line memory and 7950Gx2 video card.
Firewall is turned off.

trackIr has clear 3 grean dots with clip pro.
Problem is as follows
I fly along looking around just fine
If I come upon another plane and look up I the track will stutter. Not always consistant. Internet connection is cable with good ping. I tried switching headsets from USB to standard to drop usb activity and get the same thing. It's almost like the sample rate changes or something. Any Ideas?

Does it seem to happen after a given time period?

Plugging directly into the system, or using a hub?

It seems to only happen when other planes are around. I verified it isn't lag with fraps. Frame rates are 50+

The unit is plugged into a hub.

And it only stutters, when the TrackIR is running?

Yes when I'm looking around. Left to right and up/down Once looking to one side for instance video is nice and smoothe just the paning stutters

Double check the tracking screen, make sure you only have 3 green, there.....

Tracking Screen is clear with the 3 dots.
I noticed the USB headset was still plugged in the same hub as the trackIR. I removed it as well as my backup USB mouse. In the training area it seemed to be fixed. I'll check again later to see if it's ok around more aircraft. Maybe the USB headset was sucking up the bandwidth?

Might have been trying to us a little too much amperage...