I have 4 network external drives attached to my home network via router and 2 Linksys network storage link devices. My PC's that are connect to the home network are 3 in number. Two run XP and one is running Win7. The Win7 PC is the one with this problem. Randomly the network drives on the Win7 PC become disconnected for no apparent reason. I can click on any one drive and they come right back. This happens at least 5 times during the day and has become a major problem as it interferes with work on this machine. I am not sure where to even start on how to address this problem. Help appreciated.