hey. my pc seems to be slow because i was tryign to burn lots of CD's this week and even when i put it on 12x it still makes it seem like my PC is about ot freeze. I use to be able to do it @ 32x and have things runningg smoothly but thats not the case anymore. could it be from my second stick of RAM (it might be defective)????? my cpu is an athlon 900mhz btw.