Truoble with Pitch and Yaw setup

[simbio]

Dear Support
I am tryng to setup a good profile for FSX, I am stuck on try to position my head on bottom Right side.
If with my head i try to going in negative Yaw it's fine as long I pitch in negative way it start shaking in Roll and Yaw mode and also it dosen't keep the position.
I tried diffrent profile and play with them even the Seth one, but at the end i always get the same result.
I also fix with a doubleside tape the TrakIr and positioned in front so the three refractor get always on center.
The funny things if I Pitch up from left to the right everything is fine, so I can very precise on the overhead worload.
I have the TrackIR4 with V5 software and the hat with Track clip on windows 7 64 bit even o a machine with windows XP 32.
Some time the V5 software is crashing with this event
Nome dell'applicazione che ha generato l'errore: TrackIR5.exe, versione: 5.0.0.300, timestamp: 0x4a6fa655
Nome del modulo che ha generato l'errore: nvoglv32.DLL, versione: 8.17.12.5896, timestamp: 0x4c378f09
Codice eccezione: 0xc0000005
Offset errore 0x0063dcb1
ID processo che ha generato l'errore: 0xe30
Ora di avvio dell'applicazione che ha generato l'errore: 0x01cb6a2498a8d740
Percorso dell'applicazione che ha generato l'errore: C:\Program Files (x86)\NaturalPoint\TrackIR5\TrackIR5.exe
Percorso del modulo che ha generato l'errore: C:\Windows\system32\nvoglv32.DLL
ID segnalazione: da5946c0-d617-11df-9504-00044b019cd8
Thank you for any help.
Fabrizio

[VincentG]

So the software control when looking down starts to behave erratically?

Is the metal TrackClip at the same height as the TrackIR camera?

How far away are you, from the camera?

[simbio]

[quote=NaturalPoint - Vincent]So the software control when looking down starts to behave erratically?
[/quote]
yes

[quote=NaturalPoint - Vincent]
Is the metal TrackClip at the same height as the TrackIR camera?
[/quote]
Quite 10 cm lower but the three clip are always on the screen, and when you look down they are perfectly visible due the position.

[quote=NaturalPoint - Vincent]
How far away are you, from the camera?
[/quote]
around 80cm

Thank you
fabrizio

[VincentG]

What happens if you uncheck the True View option?

[simbio]

Sorry I haven't told I am using with uncheck True View because i need to use with EZCA in FSX.

[VincentG]

Do you see the issue, when not using EZCA?

[simbio]

yes

[VincentG]

Do you see it only in FSX, or within the IR software as well?

[simbio]

IR software as well.

[simbio]

Sorry but what about this problem any solution or i have to buy the new version to make it working?