Is there a newer BIOS update on the Dell Support Downloads webpage for your tag number or model?
What Pro installer did you use. Is it the one provided in Clean Reinstall - Factory OEM Windows 7
and did you follow the steps given there to get a perfect install, especially as it concerns how drivers
are handled differently in Windows 7?
Make sure you have all of your drivers and other Important and Optional Updates installed after enabling Automatically deliver drivers via Windows Update (Step 3)
You may be onto something with the error you spotted. When you google the error text you learn how others have solved it, including prospective solutions at http://www.tomshardware.com/forum/26...reezing-system
Continue to troubleshoot as given in Troubleshooting Steps for Windows 7.
Please also fill in your System Specs in bottom left corner of post.