Alright so a while back my computer started to act up, it wouldn't display anything when i turned it on but when i didn't touch it for while the screen would come up but it would be weird colored and distorted but as soon as i moved the mouse it would go away again. After while of i got tired of this problem and i managed to get to the screen where you can completely reset your computer by pressing F11 or whatever when it was turning on. That fixed the problem but after i reinstalled my graphic card (a Nvidia 7300GT) the problem started up again. So i came to the conclusion that this was the problem and reset my computer again. At one point of messing around with my computer i ended up selecting one of the things that comes up when the computer starts up like "press F8 or F11" im pretty sure i clicked F8 but i cant be sure. I ended up at this screen that had a bunch of different settings (i cant remember what they all were exactly because this was a while ago). I went to something to do with video settings and im pretty sure i changed something to do with BIOS settings thinking maybe this would fix the problem(i was proven wrong of course). As soon as i accepted the changes the screen went black and ever since then nothing will display on the screen when i turn the computer on or anything. So really the problem is the fact that i messed up these settings or whatever, the whole deal with the graphic card is just what led up to the problem. I would really like to know how to fix this problem without taking it to get fixed or something drastic like that if possible as i'm not very tech savvy. My computer is a Gateway and it is Windows XP Home Edition. Any help would be appreciated. Thanks!