This may be a dumb one. For some reason I switched from Fedora 8 to Debian 4. In each case I was running Wine 0.9.58. Same machine with same geForce NV18 video chip. The Rise of Nations: Thrones & etc. demo worked (as I recall) under Fedora but does not run under Debian. The game tells me that the video card is not supported. I checked the /etc/X11/xorg.conf file and it seems to have IDed the video chip OK. Not a clue what's different.