[ubuntu] Linksys wireless card crashing 12.04

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http://ubuntuforums.org – For the last year-ish, I was running wired internet. The building I'm in has wireless now for internet, so I decided to put a card back in my computer. I have 2 of them: D-link and Linksys. The Linksys is the WMP300N, and I enabled the Broadcom STA driver when I put it in. However, it kept crashing the computer. All of a sudden, everything would stop. No response from the computer, mouse wouldn't move, keyboard wouldn't do anything, screen was frozen in time. I've used this card and driver before, so I don't understand what is going on here. I took it out and disabled the driver, and (Hardware)