I did PMI of KNOPPIX 3.6 on Toshiba TECRA 8100 laptop. It works fine except the GUI resolution. It always uses the lowest resolution 640x480. I then tried CD image of 3.6 and it seems to work fine when I use cheatcode "xmodule=fbdev vga=791" (or fb1024x768 which in turn does the same thing). Is this because of modified minirt files? If yes, how can I get it working like CD image?

TIA.