>Hi there,
>
>today I encountered a strange ohenomenon while trying to debug some code. I type someting in the watch window and from that moment on that happened whenever I issued a ste step on command: The debug window appeared and then a repeating messagebox displaying ".NULL" showed until I ended the app with the process-manager.
>
>Later I realized that the last expression could be causing this and was able to delete the expression from the watch window and now everything works as before. But I still wonder why this happened and I was also looking for a table which might store the watch-expressions. So my question is if there is such a table and where to find it.

The Watch window is "live." Whatever's there gets evaluated over and over. It's possible to bring VFP to a crashing halt with some kinds of things in the Watch window.

Watch expressions are stored in the resource file, FoxUser.dbf.

Tamar