Comment 17 for bug 159594

You should probably change the status of this bug report.
The ATI restricted driver is not maintained by AMD not Ubuntu developers.

you can find out what version you are using by typing in a terminal:
dmesg | grep 'fglrx'

you should see a line that looks like this:
[ 52.012785] [fglrx] module loaded - fglrx 8.45.4 [Jan 16 2008] on minor 0
where the 8.45.4 would be where your version number is.

Another thing you could try is to disable the restricted driver and try the vesa driver or the non-restricted driver