can not launch xfree86 on debian linux on ibook G3

[yingbiao su <suyb8@yahoo.ca>]

Hi.. 

  I just got the new ibook G3 which has the ATI Radeon

7500 32MB card (12.1" screen). I am trying install debian linux on it.

But I got the problem whem I try to make xfree86 work.

The saw the same problem on the mail list but I didn’t find the solution

 this is the error that I get when I do startx:

(WW) ATI:  PCI/AGP Mach64 in slot 0:16:0 could not be detected!

(EE) No devices detected.

Fatal server error:

no screens found

I'd really appreciate any help on this.

yingbiao