Programs jumping and not working correctly

I am having trouble with my programs not starting or running correctly. This started i think when i had to forcefully remove a Duit Engine and a nasty Toolbar (dont know if it messed with reg files). This problem only use to start when i played a movie for about ten mins and it would start going out of sync but when this happened it made all my other programs jittery. Now it does it all the time, would reall appreciate some help, thanks.

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