I have a Cyberpower PC Q8200 with WinXP (Intel Core 2 Quad CPU). It has connected to the wireless network in my house just fine, until I moved the box to another room.
I also have a laptop (using now) in the same location, which has no trouble connecting to the wireless network.
Since I physically re-located the desktop, it usually can't find the wireless network, or it finds it with a very low signal and then loses it again. I suspect that maybe the network card is loose from the move.
I haven't done a lot of hardware at all. Where is the wireless network card, and how might I check to make sure it is not loose?