Win Xp -- not enough server storage available blah blah
 

I have a network of 5 computers, 3 of which are XP64. The rest, including the main server are Win 7.

Every once in a while, one or all of the XP machines will give a message saying "Not enough server storage to complete the requested operation", or "you don't have permission to access the network resource" -- and this is when it's been working fine all day, then it just decides to act flaky.

The Win 7 machines never have this problem, and I know its probably my hybrid network of different Windows OS versions. Has anyone else encountered this problem? It's been plaguing my network for months, and its driving me goddamn motherfucking cocksucking crazy.

My last resort is to just break down and buy Win 7 for the remaining machines.