Hi After Typo3 4.2.1 there is some unknown chages for me in htmlarea_rte. Tm_shared lib works ok in Typo3 4.2.1 and htmlarea_rte, but somebody comlained that layout of editing window is broken in 4.2.3. I have compare files in typo3 and didn't find any remarkable change in alt_doc.php. I can't figure what might cause that.