Any .mkv causes the PC to freeze with graphic and sound artifacts (within 2 to 8 minutes), sometimes a reboot occurs. VLC under W7/64 on the same Vaio : no problems.
VLC v2.01/2.02. Vaiofand/vaiopower installed, video on stamina mode only (intel).
CPU load is at 50% max, temperatures never exceed 59°C (Psensor). No changes trying any video/audio output in VLC.
Any help is welcomed!