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Discussion Starter · #1 ·
I have a Windows Vista PC that runs into stuttering issue once in a while and I need help debugging the issue.

I want to state up front that I use a sub-par onboard GeForce 7100 with VGA output because I don't have spare expansion slot and want to keep power/noise low. My CPU is Core2Duo 2.2GHz E4500. 2GB RAM. Resolution is 1920x1080.

For most of the time, I can play back 1080i/720p MPEG-2 stream recorded from OTA smoothly. But occationally I notice stuttering even when I am navigating the menu without anything in background. And the stuttering usually goes away if I reboot the PC.

The VMC is the only program running. I bring up the Task Manager and see about 40-45 processes. I monitored them for a couple of minutes and none of them seems to be taking any CPU besides the task manager itself.

What can I do to identify the cause of stuttering? Again, the stuttering goes away after a reboot for the same recorded program.
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