Re: proglems with G105M
you were right: no window manager was yet installed!
This was because anaconda (the Fedora system installer), not being able to start X at install time, did not install ANY X component at all, leaving me with a bare command-line system!
I then managed to install the X server, but the window manager was still missing!
Now I'm manually installing all the gnome components in order to make my system usable while, be assured, filing a bug report to Fedora, because anaconda should still let the user to choose whether or not to install a graphical system, even in the "missing videocard" case...
Thank you again