I have a troubling problem. I have a Dell Dimension 4600 that seems to be compromising my wireless network at home. It is running Windows XP with SP3 and it can connect to the network. However, whenever I try to download anything, or click a link, all computers connected to the network are disconnected. (Including the Dell) It is using a Rosewill RNX-G300LX PCI wireless card. I have no clue what the problem is. The card behaves fine in every computer it will fit in other than this specific one. Any suggestions?