hello, ive been having this problem for a bit but it seems to have gotten worse today. my computer starts to lag quite badly after having it on for a few hours. pages usually take awhile to load, the mouse pointer slows down and i can barely move it, videos barely play and the audio gradually gets more and more staticy until i restart then it's back to normal. today these problems seem to be happening immediately. ive restarted it a few times and tried cleaning out the fan and things like that but no luck. if i go to different websites a static type of noise will come from the speakers while the site loads, the same while listening to music or trying to talk on skype. and as i mentioned it will usually get worse over time. i've ran programs like malwarebytes and a few others. everything appears clean. i ran the Memory Diagnostic Tool in vista and that appears fine. im using an inspiron 530s which was ordered directly from dell last summer. i dont really know much about computers so if someone could help before this thing goes under it'd be much appreciated. thanks.