Comment 19 for bug 552782

> you're installing 2:8.721-0ubuntu7 .

2:8.721-0ubuntu10 also does not work on my system.

dpkg: error processing /var/cache/apt/archives/fglrx_2%3a8.721-0ubuntu10_i386.deb (--unpack):
 trying to overwrite '/etc/ati/signature', which is also in package xorg-driver-fglrx 2:8.721-0ubuntu7
Processing triggers for man-db ...
Processing triggers for ureadahead ...
Errors were encountered while processing:
 /var/cache/apt/archives/fglrx_2%3a8.721-0ubuntu10_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

You are right, now my problem looks exactly like bug 559587.
I am confused a bit :-(