Just starting out with Wireless and stuck already.

I have a Dynamode WL-GI-700S IEEE802.11g usb adaptor.

I am on BT Total Broadband and it all works ok either on ethernet or Wireless usb until I switch on my Epson R800 printer then niether the printer or wireless work correctly.

XP reports a usb device is damaged or that the wireless network has limited connectivity.

Can anyone help please.