MKV file sometimes syncs wrong with MPC

[Sc4rf4c3]

Hello,

When I run an MKV file with MPC, sometimes the audio is not synced with what a person does on the movie, and sometimes it just runs perfectly. Why does it do this?

I use MPC + CoreAVC with these settings, Playback > Output > Overlay Mixer because I have a old PC.

Sorry for my imperfect English.

Thanks

Edit: I entered my computer details when I registered, but I will add it here too.

Windows 7 Ultimate (32-bit), AMD Athlon(tm) 64 Processor 3400+ 2.40 GHz, 1GB RAM, ATI Radeon 9550 / X1050 Series

[Baldrick]

Try some other players just to test, like Splash, latest MPCHC, Potplayer.


And it's time to get a new CPU and graphics card...

[Sc4rf4c3]

I tried them all with low settings, they just lag.

Only MPC with CoreAVC and those settings above works good. But it still doesn't sync properly everytime. Aren't there other settings I can do other than buying a new CPU & a graphics card?

Thanks