Saw this today on Lockergnome: "When the courier drops off a package, someone must sign for it to verify the transaction. The same holds true for drivers in Windows 2000 and XP. Despite the whining of legacy-loving lusers (local users), this is a fantastic feature. Nine times out of ten, Windows doesn't crash Windows. Buggy drivers, on the other hand, have been known to cause countless contentions. Microsoft instituted "driver signing" to stop problems before they started. If an installed driver is NOT signed, caveat clickor (let the user beware). Use VERIFIER.EXE - the Driver Verifier Manager - to gather information about and troubleshoot your system's drivers. Admittedly, this tool was specifically designed with ubergeeks (and driver developers) in mind. For details and usage guidelines, refer to article Q244617 in the Microsoft Knowledge Base. Check with hardware manufacturers to see if there are WHQL (Windows Hardware Quality Labs) certified drivers available for your device(s). They may not be optimized for speed, but stability is sometimes more important." Hope someone might find this helpful!