[Randy Edwards] > The client will freeze/lockup (no keyboard response or mouse > movement, nothing) for 5-10 seconds, then come back to life for a > second or two, then freeze again for 10 seconds or so, and then will > act normally. Since those two machines are not critical in what > they're doing, I haven't worried about it but it sounds like what > you're seeing.
Could this be a half/full duplex issue between the network card and the switch? Try to force the network card and the switch to use the same setting.

