VProSvc.exe APPCRASH unless connected to storage

64bit Vista.  If my USB drive where my restore points and data are located is connected.. I can leave my machine on for days.  If I undock and go somewhere, the VProSvc.exe will crash.  Is there anyway around this as the system becomes unstable until the crash completes?

 

Problem signature:

Problem Event Name: APPCRASH

Application Name: VProSvc.exe

Application Version: 14.0.4.30167

Application Timestamp: 49418ede

Fault Module Name: VProSvc.exe

Fault Module Version: 14.0.4.30167

Fault Module Timestamp: 49418ede

Exception Code: 40000015

Exception Offset: 002680d4

OS Version: 6.0.6001.2.1.0.256.1

Locale ID: 1033

Additional Information 1: d274

Additional Information 2: 63e8e3af736acffeda8161645ba80eea

Additional Information 3: 51d5

Additional Information 4: a67ef52cb4d8d5be3be8e1ca16ddaf1e