Strange issues on Intel Macs with my Studio App

Hello!

I compilied my Studio App as an Universal Binary. I have an PPC and everything seems ok, the App don´t crash.
Some other users can also run my app without problems. But some users report me that my App crash down.

I gave them a debug version, so that I locate where is the buggy code.

The first code what I found was when I tried to delete a dictionary:

delete myDict

Furthermore my App crash after this code:


	set callDataSource to data source of table view "myTbl" of scroll view "myTbl" of drawer "myDrawer" of window "myWindow"
	set theRow to make new data row at the end of the data rows of callDataSource

and when I try to delete a loaded image

 delete theImage

Is there any bug in my code or are some known issues with applescript code on intel?

I would be very glad to get some help.

Greetings, hoschy07.