Ok, that's fixed the combat screen issue, but the regular screen layout looks kind of weird (eg the square above the word 'inventory')
I'll just add I'm seeing the same issue SilentThief is, but with the pool of radiance conversion I'm working on. I should have reported it before, but thought it was just a module specific glitch that I'd track down later.
marainein, use the config.txt I included in my post above and your problem should be resolved. If not, please let me know and I'll work to get it resolved.
Using the default 640x480 config.txt breaks the borders, because they are not the standard size. The config is set up for 14 pixels and these borders are 16.
So, what you need to do is go back to the original config, and add in the lines from the new one that do not exist in the original.