Recently I had my computer taken in and Windows XP reinstalled. After about two weeks I started noticing that whenever i play videos or even video games I freeze or stutter for a few seconds. I ignored it for a bit thinking it must just be my internet connection but I had my friend come over and hook up his computer to my connection and he ran just fine. My worst problem is when I play Team Fortress 2 I will play just fine with 20-30 people on but whenever someone connects to the server that I am on I will go from 90+ fps down to 1-10 fps and I will freeze or stutter for a few seconds. Then its back to normal and plays fine. I run TeamSpeak in the background and and can still talk and hear just fine with everyone else except the game my sound and video stutters like this.
It does the same thing when I watch videos. I can watch them from my PC that I have downloaded or from anywhere and get the same results. After a few minutes into the video it will play like its in slow motion for a few seconds and then it will be just fine. The sound will keep playing like nothing happened. I thought this might be a Video Card issue and have reinstalled the driver but it did not correct the problem.
I have attached a text file with my pc specs! Any suggestions on what it is or what to do? I use to run all of this just fine without problems up until recently. I have done virus and malware scans and found nothing.
Thanks for any help!