Dell 1300 wireless cutting out?

[Talonz]

Here's a long shot, but since I don't know much about networking, here it goes. I have a dell D600 laptop with a internal minipci 1300 wireless card. I'm in the dorms on a 802.11b network with multiple access points on each floor. It seems that after using it for 15 minutes, I can't access anything anymore. Everything times out although the signal is just fine. Any suggestions?

Edit: Disabling and re-enabling fixes it temporarily.