This is really strange. I installed a new anti virus program on two of my home computers and when I rebooted, all of the sudden I can't see any of the other computers on my wireless network. This happened to both PC's. Doing the logical thing, I uninstalled the anti-virus software, but the problem persists. I know that it's not a problem with my adapters or the router since I can still connect to the internet through the router, I just can't see the other machines. I checked all of the workgroup settings and nothing has changed. When I look at the workgroup on the network I can see each machine locally but not the other machine. I'm totally baffled.