Extjs 4.1 Gridpanel Missplaced Column

I have a GridPanel, but, as you can see, the first column(which is locked) is not aligned like the other ones. Is it a bug, or am I doing something wrong? EDIT: Here are some snip

Solution 1:

This was an issue with ExtJS(like a few others). I have asked for support on their forum, but no answer was provided fast enough to be useful(the last time I checked - maybe a year or so ago there was still no answer).

In the meantime I have stopped working with this framework and have not checked for another fix.