i have a 2 yars old geforce fx 5200 agp 128mb card.its working fine but from yesterday its giving a critical error.when i was working with my pc then suddenly my screen with stripe of yellow lines.i chked ram the i replace with another agp card then its ok.when i insert old one then boot when pc in post then it give full screen whites lines with some ascii code then yellow lines comes up. what shold i do. how to fix this , this is my first card and favorite card.pls help