Nforce drivers

Hello, Has any one been having issues with the newer Nforce mainboard driver software for Nforce 2,3,and 4 chipsets. I have a few mainboards here with all three chipsets and they all seems to have minor issues as of late. My Epox Nforce three has been doing ok but the 4 and 2 have been acting oddly lately with some blue screens and random restarts. One board is Asus Nforce four and the other Epox 2 ultra. They have in the past always have been very stable. They both are freshly formated with the latest chipset drivers. thanks

No problem at all with the Nforce 4 on my AMD rig.

The only other thing that these system have in common is that they where running NIS 2007 which has recently been uninstalled and replaced. It could be something else that I am missing. This system is running stable now but the 1st week after I formatted the drive it was not.