When I first installed Vista on this machine the wirelss card would work fine for 5 mins or so and then give me limited connectivity to the router. Originally I thought it was cos I was using the bios hack as the same card worked flawlessly in XP. I managed to get hold of another wireless card, installed it and apart from a signal about half the strength of the other card it works flawlessly, no limited connectivity problems at all. I kinda get the feeling it might be a driver conflict problem of some kind with the vista drivers. The original card that I was using was a TP-Link card with a Realtek chipset and the new card I'm using is a cheap generic Chinese card with a Marvell Libertas chipset. The reason I'm suspecting it might be a driver conflict is because the onboard LAN is a Realtek chipset. As soon as I plug the Realtek based wireless card in it causes no end of limited connectivity problems. Anyone have any ideas? Could it be a hardware conflict maybe or is it a driver problem? I've tried using the drivers that came with the TP-Link card and the generic Vista drivers both with the exact same result. The Realtek based card has no problems whatsoever in XP, just under Vista. I'd really like to go back to using the Realtek based wireless card because it has a much better signal strength.