Hardware:
Quad core CPU @ stock 2.4
Nvidia 8600 GT
2 Gig Ram
Software:
Fresh install of Win XPpro SP3
Fresh defoult install of k lite megapack ver 4.x.x No other codec installed whatsoever
AVCD files with .tsm extension 1920x1080 30 frames per second (progressive) from my Canon flash camcorder:

PROBLEM:
When I try to play back those files it only used single Core not enough power so i loose many frames (picture below),

If I play ANY other hd file all the cores are getting the load… When I had earlier versions of Klite mega pack ( I think 3,x..x) it was playing fine as it was utilizing all the cores.
How can I tell Media player classic (that is installed along with mega pack) to utilize all the CPU cores as it used to do in the good ald days!?!?
Any ideas!!?!?