Hi,
I've just submitted a bug report: http://bugs.squeak.org/view.php?id=6802
each time I generate a squeak-dev image with UI-Enhancements, a graphical bug appears in the ScriptManager. Attached is a screen shot.
You can download an image and see by yourself: ftp://ftp.ofset.org/squeak/squeak-dev/beta/sq3.10-7159dev07.12.1.zip
Bye