Sapphire X1550 512m DDR2 AGP graphics card and NEC...

Question

Hi I've just upgraded my graphics card to the above from a Cirrus Logic Laguna 5464 all seemed to go ok untill it asked me to restart my computer on reopening all my Icons were huge and if I went on line I couldnt see google or whatever as it was off the screen! If I plugged my monitor into the other socket all I got was the screen saver in the middle of a blue screen and no icons at all. I tried to change the display in the display settings but it didnt make any differance. Please help as I've now disabled the new card and I wanted to view video but my old card wont!! I'm running Windows XP home edition and my mother board is ASRock K7VT4A+ I have Hauppauge WinTV, Creative SB Audigy sound card, I hope this is enough info to enable you to help me!

Thank you