well if you have your pc speaker hooked up are you posting? remove your system ram and try booting the system up to see if it is posting with the card in. did you check in your bios to see if you have it set for AGP, it might have been seeing the gf2 and just defaulting to it not becuase it was...
Are there any places with the X800XT-PE in stock? Price isnt really a factor I just want the damn card already and everyone says 2-3weeks yet people seem to have them.