I'm haveing this same problem with both Kotor 1 and 2.
I start the game, and it goes to the main menu, but there it's slower then hell, starts of as a black screen then about a minute later the menu appears,
while that black screen is on the mouse pointer is visable and moves normally and i can even hear the sounds of it going over the buttons in the menu,
i can even click on them and it seems to give me the next menu, based on that the locations of buttons move, but the screen stays black.
When the menu is displayed however then the buttons also start reacting slow, and the whole background animation is frozen.
i can go through the menus but takes quite awhile.
I suspect this is yet another duelcore issue, but i've tryied all duelcore fixes i've found.
System specs:
AMD64 X2 4400+
2GB DDR RAM
nVidia Geforce 7800GTX PCI-E
Motherboard is a nForce4 chipset.
So please if anyone has any sollutions