Had problems with Win 7 and BSOD's on a regular basis . (M4n82 Deluxe Mobo - AMD Phenom 545) I did notice the exclamation mark in Device Manager about 'Coprocessor', but didn't give it a thought. Well, it showed out to be just the solution to install Nvidia's Coprocessor driver! 'Funny' thing is that I never saw it mentioned when surfing on the net for a solution! And MS Fix It also did nothing to suggest anything near..So here's for you in trouble to culprit your troubles 
My Computer
At a glance
Windows 7 ProfessionalAMD Phenom II 5454x2 2GB 2048 MB DDR2 800 MHz Kingston Value RAMATI Radeon 4300/4500 series
- OS
- Windows 7 Professional
- CPU
- AMD Phenom II 545
- Motherboard
- ASUS M4n82 deluxe
- Memory
- 4x2 2GB 2048 MB DDR2 800 MHz Kingston Value RAM
- Graphics Card(s)
- ATI Radeon 4300/4500 series
- Sound Card
- E-MU 1820M
- Monitor(s) Displays
- Neovo K-19
- Hard Drives
- WD Raptor 74 10.000 rpm (SATA) for OS. WD Elements Desktop 1 TB (storage). Lacie Quadra 2 1 TB (e-SATA mode)
- PSU
- TX 650W
- Case
- Antech
- Cooling
- Thermal Take
