this is what I did, hope it works for you:
1. download the driver from
http://www.probo.com/timr/savage40.html
it contains a file named savage_drv.o
extract it to /usr/X11R6/lib/modules/drivers
2. in text mode you do this in the command line
init 3
XFree86 -configure
this will create a file XF86Config.new
3. Replace the file /etc/X11/XF86Config with the XF86Config.new
example : cp XFree86Config.new /etc/X11/XF86Config
4. Start xwindows with
startx