Strange GUI error on Ardour 0.99.3

Hi,

since a certain time I got this GUI behavior:

http://www.erdie.de/ardour-error.png

the bars where all location markers are placed is shifted to the right and does not begin at the left border of the window.
I tried to delete my .ardour.rc - file but this does not fix the problem. I happenes on new projects, too. I you save and close a project, the end marker is not at the same location where it was before closing the application.

Any ideas whats wrong ?

-erdie

I found that this happens when Ardour was build with gcc 4.1.1. With gcc 3.4.6 it works !