I have a very odd problem and its getting to be a pain and possiblity a big problem down the road. For no reason the server which runs windows 2000 server with the latest service pack, exchange 2003 server will lose netowrk connectivity, and the keyboard and mouse function will not exist either. the only way to get it back is to reboot the server. this problem happens randomly. maybe once every 3 days or it might happen 6 months from now. There are no events logged and i ran diags on the network card. I even bought a new switch and it still happens. Does anyone have any clue of whats happening with this system. I was thinking of upgrading the bios but I dont know if that would make things worse or even help the situation. Please advise.