Hi, i need help , yesterday my montior started having red and gren lines flashing every 2 seconds or so all over my desktop lcd monitor..I dont know what is causing this and would like to fix it..I have vista ultimate, graphics card is a nvidia GeForce 7600 GS with heatsink, monitor is HP vs17e..My resolution is set to 1280 by 1024 , which is what i always have it set to..75hz is the refresh rate...Is there something wrong with my monitor, video card or my motherboard ? please help ..