My Wireless connection is crap...help

[xltros]

Hi, I just recently moved to a place and for some reason my wireless internet connection keeps going out on me. My dsl is fine as i never get discconnected when i plug the line into my laptop. It seems like the wireless is just having trouble staying connected, even when it's like 5 ft. away, so i don't think distance is the problem. i never had these problems before so i'm pretty sure the router is ok. Any body know what might be causing this and how to fix it?

I live in a apt. complex. and it usually disconnects me after an hour or 2.
Thanks.