Hi, I have NVidia GeForce 6200 Graphics card connected to my LG LCD monitor. Yesterday some how or by accident the display setting got changed. As i was away, i don't know what happened and how did it happened but now when i start my computer i see the windows xp logo and the progress bar and after that a blank screen with a blue box in the middle saying that refresh frequency mismatch and some 95 Mhz. i don't know how it happened but i think its some problem with display settings. Even booting into safe mode is also not helping. I have also tried last known good setting from the start up menu. but the same problem. please help me. how can i reset the display setting without reinstalling my windows.