I have a friend who asked me to look at one of their computers. They have a small network (around 5 computers) hooked up to a server. One of the computers has a issue where explorer.exe freezes and they can't open word or excel documents. After going through and trouble shooting as much as I could I found out that the computer works fine if I unplug the network cable prior to booting it up. I did a virus scan and well as a spybot scan. I made sure the xp and office 2007 updates where installed. Prior to me looking at it non of the office 2007 updates were installed. The system has a duel core processor with 2 gigs of ram with Xp pro SP3. The video card is integrated. All 5 of the computers are the same build but this one has the issue. All of the others run fine. Any thoughts?