Bug#271071: xserver-xfree86 : nv_drv.o cause screen corruption

[xxxxx_2001 <xxxxx_2001@yahoo.fr>]

Package: xserver-xfree86
version: xserver-xfree86_4.3.0.dfsg.1-7_i386.deb

When I start Xfree86 from console or when I restart xdm/gdm 
or I want to start second xfree session 
(with command $startx /usr/bin/gnome-session -- :1 ) 
all this command cause screen corrupt.
This bug is only when in use the nv driver.
With the vesa driver, all started perfectly
If I change the nv_drv.o version 1.7 by the nv_drv.o 
on package version 1.6, xfree run correctly

I think that the nv_drv.o on the 1,7 package don't run properly.

I am using Debian GNU/Linux sid with kernel version 2.6.9rc1
and libc version  2.3.2.ds1-16