Hi, I accidentially discovered that the reported bug definitely depends on the "DisplaySize xxx yyy" parameter in xorg.conf . When the parameter is in the bug is there, when removed the bug is away.
So the Bug Description should read:
Printing is incorrectly influenced by xorg.conf "DisplaySize".
Note: Some older people like me really like linux because the (X-) display can be easily "zoomed" by overriding the screen size (or DPI). The current version of xorg in lenny does not always honour the DisplaySize parameter. For this reason I recently removed the DisplaySize on some of my machines and now use the -dpi switch of the X-Server. The Ubuntu System was not using the DisplaySize parameter at all.