About a week ago, I began having problems with my audio and video. When I would watch a video on youtube or play a song from Media Player or iTunes, it would momentarily pause every second. Obviously this is a frustrating problem. Also, my mouse and keyboard stutter at this same interval. The letters I type do get typed out but they have to catch up so to speak where they don't get typed out as soon as I press them. This all happens as soon as I start my system and the timing never changes; the stutter occurs every second- I've even timed it out to be one stutter per second.
I did a system restore to an earlier time and nothing improved- I checked for updates, and checked to make sure that my ATA/ATAPI Devices were in DMA Mode at the suggestion of another forum where a person with similar problems solved theirs. Here is the procedure: http://www.microsoft.com/whdc/device/storage/IDE-DMA.mspx
But this didn't do anything for me either. I've run multiple MBAM scans, my other virus program (NOD 32) and Spybot, but nothing came up. The only other thing I can think of is that whenever I start up my computer, the black screen at the beginning says that it can't detect an AC power source. I'm assuming that this means that my battery is dead (I have a laptop). If the power cord gets unplugged, even if for a second, the entire computer just dies. The computer worked fine even with this power error message, so that's why I think that I just need a new battery and these problems with the stuttering are an unrelated problem.
Either way, I'm turning this one over to the experts! Thanks for your help.