Dell/ATI RAGE 128 PRO & drivers

I'm not sure, if the graphic card I have is manufactured by Dell, but when I try to search by google, it look like it is from Dell (photo is here: http://www.1a8.webz.cz/VGA.JPG). The problem are drivers: I downloaded latest ATI drivers, but it wrote that they are not for my VGA card. Than I downloaded many other drivers from driverguide-some from ATI, some from Dell. Three or four from Dell could be (manualy) installed (it said that the driver was not written for my card), but when the system (Win98SE) started, the display was black and PC don't resumed OR the system normaly started, but in the device manager wrote "This device is not in the system or don't have all drivers."