Hiii,

I am having a comp wit dual 2 core processor & 256mb of RAM& inatalled Xp media center...
But I only have inbuilt graphics card of 64mb...
Is there a way were in v can change d config of graphics memory using BIOS... :)

Yes sometimes anyway.
Once you get into the BIOS look for graphics.
If it isn't there then you can't adjust it.
Easier way os to buy a half decent graphics card.
While you're at it get a shed load more RAM as 256 Mb is pitiful for XP

What type of PC is this? Did you have it built for you? I don't recall ever seeing a dual core machine with less than 512M of Ram, especially a Media Center one.