strange display behavior Table view in debug client

Hi,

in the debug client of Servoy 7.4.1 on Win 7 (Java 1.7.0_55) I have a strange phaenomen with a table view form in a tabless panel.

This is the correct view:
[attachment=1]Screen Shot 2014-06-06 at 10.08.19.png[/attachment]

This is when I move the mousecursor over the title header:
[attachment=0]Screen Shot 2014-06-06 at 10.09.10.png[/attachment]

This is when I click the checkbox
[attachment=2]Screen Shot 2014-06-06 at 10.09.33.png[/attachment]

On Mac OS X 10.9.3 and Java 1.7.0_55 it works without the behaviors!?

Every idea for a solution is welcome.

EDIT: If I set the form Property to “transparent” the problems seems to be gone.