jqmobile 1.0a4 - styling problem

jqmobile 1.0a4 - styling problem

upgrading from 1.0_a2 to 1.0a4 got me some styling problems. For example: the icon of the "ui-btn-left" sits too far on the left, reaching out of the button and getting cut off.

I just wanted to ask if this is a known bug, if there is a fix, or if somebody else expierienced this.

thx gbye