yes, I think my wireless card is locking my ibook up. I have tried this on 2 browsers, and still gets locked up. I am usually using tabs (only 2 or 3) with the window maximized. I turned it off and looked at the connection. Noticed that the cord connecting the card might be crimped, so unplugged it, re-positioned the cord so it wasn't touching the metal bracket holding the card in place, and still the issue persists. I am stumped on what to do.