I've just got a new wireless PCI card - Super Range Sitecom WL121 based on Texas Instruments ACX111 chip. It appears to be causing the PC to turn itself on after I've turned it off. Removing the card seems to solve the problem. The only way I can keep the PC swiched off is to pull the plug out.

I am also unable to access BIOS with it in, and it is going straight to GRUB no matter how much F10 I press!

Please help!