Having problem in playing Movies in Window7

I have MSI P4M900M2 board with Intel Pentium Dualcore, 2 GB Ram and internal Video 256 supported, Internal Realtek HD Audio 7.1 channel, 160 GB hard and every thing is working ok well i found so many problem with old software's and progam's and drivers but managed all. Now a new problem arise when i play a movie in any player like VLC or DIVX Player or Media Player etc. movies breaks while playing and sound as well breaking, so slow in playing and hearing looks like watching a movie in slow motion camer ....please any one can help me

Without knowing the chipset of that board, it is hard to say, but it should be modern enough to handle basic movie playback (unless you were watching true HD content). You should make sure your chipset drivers are installed, and the latest drivers for the onboard graphics as well.

VIA P4M900 Chipset i think it is i have its orignal CD but its XP version. have updated its version but in installation error appears, same movies were ok in xp an dmy audio songs are playing perfectly ok

no using a broadband connection DSL so no wireless router issue

These are spec. of my system
OS window7 32-bit version
CPU Pentium Dual Core
Motherboard MSI P4M900M2
Memory 2 GB
Graphics Card Internal 256 Supported (Was Using 7300 GT)
Sound Card Realtek Audio (Internal 7.1 channel)
Hard Drives 160 GB

Try removing your current drivers and then running Windows Update to grab the latest available.

how can i remove old one's board drivers and only can i remove chipset driver??????????

If there's no listing in the Programs and Features applet of the Control Panel, then you can remove the device from Device Manager, and then run Windows Update.