Since I installed a new router/modem (Dlink) my monitor is behaving oddly. I thought it was confined to Win Media Player 11 but it seems to happen in Itunes as well although not as consistently. When I play anything involving video the monitor freezes and then goes black and the - no signal check cable - message comes up and the only way to get the display back is to re-start the PC. I am on XP SP2 the router installed a treat and I have put an adaptor on my laptop and that is working well but the monitor went peculiar after the router/modem went on and before I linked the laptop up. Hope this makes sense?