Recieved a new graphics card yesterday. The gtx750ti. Removed my old graphics card, the gtx210 and replaced it with the new one. With my new card in the desktop I no longer receive a signal to the monitor but when I put the old one back in i receive a signal. Any help? My psu is 750w so there shouldn't be a problem. Everything is compatable. The PC itself works with the 750ti as the fans spin in the card and I can hear the start up of Windows