help I just bought a new monitor and I cant see on the back of computr where is dvi port my card is a powercolor 6790 there is only one prrt I can find Newegg.com - PowerColor AX6790 1GBD5-DH Radeon HD 6790 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card