Intel wireless crashing Windows XP

We have a Gateway desktop Windows XP home edition with Intel wireless 2011B loaded. It works great on our other computer (Compaq) . The Gateway is dumping memory on a blue
screen consistantly now. Error message cw 51 usb.sys
BCCode 10000050 0xF8DB9B8C, BCP2: 00000001
0XG827E61E, 0x00000000
OSVer 5_1_2600 SP:2_0 Product: 768-1

Intel no longer supports this system. I think it involves the driver I
downloaded from their site. It worked for months and now we
might have gotten a virus or something. The computer recognizes
the wireless system but does not make the connection...."No connection
available " when there is.
Help. I am not real computer literate and have reloaded wireless system
and drive twice.
Thanks