Tonight, all of a sudden one of the PCs (with Vista) stopped connecting to the network and won't connect again.
I've deleted the network profile, found it again and still can't connect. We've rebooted several times, reset the router -- nothing.
My PC, which I'm typing this on, has full strength and no problems accessing the same network. Same with my girlfriend's laptop. I'm XP, she's Vista.
I must admit I have no idea what to do, have searched online and tried as many different things as I can with no success, including fiddling with the wireless receiver plugged into the PC.