Problems with Metacard Script Editor and KDE

[M. en T.E. Alejandro Diaz Infante]

Does anybody has noticed a problem to run MetaCard in KDE 3.1?

When you select some text in Script Editor, then Edit->Copy, and then click on 
either "Ok", "Cancel" or "Apply", appears the Execution Error dialog:

Chunk: no target found
Chunk: can't find object

The offending script the execution error dialog turns out to be the first line 
of procedure "on savehistory" of card "Editor Card" of stack "Script Editor 
1" of stack mctools.mc

After this dialog appears, the script editor is really messed. If I try to 
select some text, it automatically de-select itself. Edit -> Paste does not 
paste anything, and the only way to close the script editor is by clicking 
its close button, selecting "No" to the "Save Changes?" question dialog.

If I use other WM/Desktop environment (such as WindowMaker), the problem goes 
away, so I suppose this is KDE related.

I noticed this problem some months ago in Mandrake 9.1, but by then I didn't 
care about it. I'm a SuSE user and I was just playing around with Mandrake 
distro.

However, a few days ago I switched from SuSE 8.1 to 9.0, and this behavior 
appeared in my box!

Does anybody knows how to solve this? (other than not to use KDE, of 
course)  ;P