No, problem, thanks for your help!
By the way, I have made an installation script (install_ccs.sh) for myself to install CCS on Ubuntu 13.10 x64. With this script, you are able to install CCS on a fresh installation of Ubuntu (for example in a virtual machine). I think, maybe it could help you while you are searching for the bug. So I will attach the script (and some other files which are also needed) to this post. The only files which are also needed (but are too large to upload here) are "CCS5.5.0.00077_linux.tar.gz" and "SW-TM4C-2.1.0.12573.exe".
I think with these files and a fresh installation of Ubuntu 13.10 x64 you are able to reproduce exactly the same situation as I have. If you have the time to do it :-)
Thank you very much.