Warning, this subject is old (6664 days without answer)
antp
Try to go in the Options window of MPC, and in "Output" page change the "DirectShow Video" setting to something else (except "overlay mixer" as it does not allow saving pictures)
4x4
Antp or any administrator, can you tell me how to make MPC run smoothly without any errors cause it keeps freezing up and I have to make a new box.