I just tried that get solved but always happened...try to look out for attachment
This gonna happend if i load the page. If i will click on some of that buttons it will be realigned and all is ok...
EDIT: This happens even if you render this directly to the body without any modifications to source or something and with only ext-all.css loaded, so it have to be fairly reproduced. its just a basic (just like examples) source code.
If i click on any button it will be fixed.
Running mozilla firefox 2.0.7!