Back when I was running Mandrake 10.1 on my Athlon machine the machine would lock up at times when I would transfer large files over NFS to my Celeron machine. But, lock-ups would only occur when the Athlon machine had an active Cisco VPN connection running. When the VPN was down, then the machine was completely stable. Then I upgraded both machines to Mandriva 2007.0. The symptom changed. The Athlon machine would no longer lock up. But, it's networking system would freeze and I'd have to restart it. Again, there were only problems when the Cisco VPN client was active. A week ago I swapped out my network card in the Celeron machine, taking out a 3com Combo (3c59x) card and installing a Lite-On LNE100TX (tulip). Swapping the hardware has covered up the problem and I can't make the Athlon machine's network hang anymore. The problem machine consists of: Mandriva 2007.0, Athlon 64-X2 processor on an ABIT-AV8-3rd-Eye motherboard with built-in 1Gb ethernet, running version 4.8.00.0490 of Cisco's VPN client for Linux. The companion machine consists of: Mandriva 2007.0, Intel Celeron processor on an Intel-D845PESV motherboard with PCI 100Mb network card. I'm posting this in case anyone else has a problem. Cheers... -- PLEASE post a SUMMARY of the answer(s) to your question(s)! Show Windows & Gates to the exit door. Unless otherwise noted, the statements herein reflect my personal opinions and not those of any organization with which I may be affiliated.