spyware? maybe? ... help

hello, I'm not really sure if where I'm supposed to post this, since I'm not really sure what the origin of the problem is.
my problem is most noticeable on youtube, what happens is, about every 25-30 seconds, the video suddenly Lags for about 1 second, then catches up to the audio which remains unaffected. This happens both with IE and Firefox, so it doesnt seem to be browser related. Altough this doesn't seem to happen when watching a movie/video on ares or windows media player, etc....
And this had not ever happened to me, not even regular slowdown, since I got my new PC
the only guess i have, is that its one of those spy-wares that every 30 seconds takes footage of my PC, making the memory usage spike for a brief moment, but as i said I'm not really sure, so i don't want to start downloading and executing every single anti-malware just yet, i would like some advice for this
if extra info is required I'd be happy comply =3 (Dxdiag information attached)

 

It could just be your computer and maybe not enough ram in the computer. Your computer may just be slow for reasons or someone could be causing youtube.

If you feel you are infected you can try this link http://forums.majorgeeks.com/showthread.php?t=35407 Its the read and run in the Malware section of forums. Run all scans post all logs in the Malware section. They will get back to you with instructions if you need it.

 

well right now I am defragmenting my PC, but as soon as it's done, i will run some scans, i really don't think its just my computer since it didn't happen before, ever. And i always thought that 2gb RAM would be enough for Youtube :3

 

i got .90 Mbps download, and .11 Mbps upload...
although I'm not sure how an already fully loaded video could be affected by such a thing...

 

well the thing is, it didnt do that before, not even with slower connections, since sometimes there are up to 3 computers connected to the same modem

 

Sounds like what I get on my onboard graphics when it is getting buffered. Not enough memory built into the graphics section.
If a plug-in card, try to find one with a larger cache to it.