hard wired then it MUST be the hardware.....he says the wirless doesnt drop from his laptops SO that only leaves the nic.....if the nic drops its cos its either losing its DHCP address or its just duff...try setting it stattic tiff...u got nowt to lose.

have u looked in device manager TIFF u may have a conflicting IRQ as u said u have only fitted a new g/card they could possibly be sharing the same IRQ???

and beemer boy im only tryin to help if u got nowt constructive to type then dont friggin type!!!!