My setpoint quits working after some random amount of time.

I'm using IS & boxer, Windows 7 x64, and setpoint 4.8 for x64

It works for an hour sometimes and other times 5 minutes. I have to tab out and shut setpoint down and then re-start it and it works again for some random amount of time.

I've tried turning UAC off, and tried changing to older versions of setpoint - nothing seems to have helped.


Ideas?