Maybe a messagebox appearing, or a wait window? Or..if you put your set step on in like a lostfoucs() event you can get some strange behavior...I'm just guessing here. What's happening in the app when this happens?

>Hi
>
>When developing a form using the form designer, I used the 'set step on ' to progress through several methods so I could analize the
>variables, and determine the correct operation of the method etc. At an advanced stage of the design, the debug windwow did not stay on the screen, but minimised immediately. Any attempt to click on and activate the debug window resulted in a temporary flash of the debug window. As a result the method hung where I activated the Debug window and I could not step through the method.
>
>What would cause this ? Any Help would be greatly appreciated, as this problem seem impossible to debug???
>
>
>Peter F Lee