So I've tried tinkering with this over the past couple weeks, and finally just need to ask you guys.
My computer: Compaq Presario CQ60,
http://www.amazon.com/Presario-CQ60-210US-15-6-Inch-Dual-Core-Processor/dp/B001NPDKVM
My router: Linksys WRT54G
A couple weeks ago, my connection spazzed out while I was surfing online. It hiccups sometimes, it reconnected, and was fine...but then spazzed out more over the next hour or so before dying completely (i.e. I can't connect to it at all). It doesn't even show the connection in my laptop's connections, but I know it's not the laptop because it's picking up the other five wireless signals in my neighborhood.
The odd part is, it doesn't appear to be the router since my iPod Touch can see it just fine (although, strangely enough, it keeps saying it can't connect to the network). I've mucked around with the preferences on my laptop/the router, tried uninstalling/reinstalling, tried troubleshooting, switched from WEP to WPA and back, aaaaaaand...nothing.
I wouldn't mind so much if I didn't use my laptop to bridge the connection to my Xbox. I haven't been able to play Street Fighter IV online in the past couple weeks, which makes me sad :-/. Any help is appreciated!