i think i have not reported my problem properly.
i burned the iso image of suse 9.1 personal from digit dvd. when i tried to install there was problem for graphical installation. i was able to install in text mode and os is working properly. the graphics card was detected after installation was over. now i have no problem using it.
but my question is, why i was not able to use graphical interface for installation. as you all are saying that 810 board is not the problem then, is it the problem with cd i burned or is the problem with the iso image given by digit.