I just built a new Vista PC. I was able to access and even see in network panel my win2k pc from the new pc. However in the beginning I could access and see it then after a time it would disappear and even attempting to map the drives would fail with an error saying it was no longer available despite the pc still being on and nothing having changed between the two. I could access and can still access the new pc from the win2k pc flawlessly at any given time no matter how long between times attempting to access. The problem connecting to the win2k pc from the new pc has degraded and now I can't access the old pc at all nore even see it in network panel even when both were freshly powered up. Attempts to access the pc manyually by typing the name of the old pc in the location text box "\\nameofpc\" i get a popup saying windows cannot access \\nameofpc\ etc and has a diagnose and cancel button. Pressing diagnose results in windows found an error that can't be fixed automatically. However I was able to access the win2k pc for a few days when it 1st no longer would show up in the network panel by using this method. I haven't done anything to change either pc since when it worked for the most part to now where it doesn't work at all. I am still able to flawlessly access the new pc with the win2k pc but not access the win2k pc with the new one.