Mouse beeping when using Chaseplane (Win 7)

Hi all

I have been encountering a rather crippling issue with Chaseplane that renders not just the Simulator but my entire PC unusable, requiring a restart. In effect my mouse stops responding properly and lags out, the mouse buttons stop working and movement of the Curser is out of sync and makes continual beeping noises as it edges it's way across the screen.

I have encountered this issue in the following scenarios

• The PMDG 737 after a few minutes of use with some of the experimental builds of Chaseplane (it disappeared in some builds and reappeared in others I think)
• The Qualitywings 146/Avro RJ upon loading in. This has only occured since the latest update to the 'stable' release (which I installed earlier today)

For additional information, I am running P3D v4.4 Academic on Windows 7. I have a feeling what may be crapping out is the Win 7 USB Mouse drivers, though I have not yet attempted to replicate the issue with a PS/2 mouse. If necessary I can give further details of my specs.

Any info or assistance on this issue would be greatly appreciated.

Thanks,

Martin