Technology Forum

Hey guys,I've done a bit of searching about but can't seem to find an answer. Recently my PC's monitor wasn't working although it had power. So I assumed it was the graphics card, I ordered a nice new Radeon x1650 Pro AGP. While it was on its way, my old card started working, but the PC randomly cuts out and restarts itself. I still assumed it must be the graphics card messing me about.New card arrived to day, followed the instructions and put it in. Booted it up, but the monitor only displayed a load of lines of colour. Inserted the old card again, uninstalled all the old stuff through My Computer>Management. THen uninstalled the software. Put in the new card and its still just displaying a load of random colours.Any idea what I should do?Many thanks for any advice you can offer.