Kevin,

I set the breakpoint and it fires when the form is instantiated and never again. I'm not sure what I am looking for, but after tracing that code I didn't see anything I found suspicious.

I did observe one peculiar effect, however. In playing around I added a second button to the form and added a tooltip text to it. If I simply roll the mouse over the second button, the tooltip text returns on the first, previously clicked button. (It works the same in either order. I can click the second button, then roll over the first as well.)

I haven't yet found any other action that brings back the tooltip text, including minimizing, maximizing, opening other forms, switching applications, or rolling and clicking all over the place - as long as I don't roll over the other button with a tool tip or closing and reopening the form. Rolling over a button with no tooltip text set has no effect.

...Jim

>Jim,
>
>>Hmmm.... I just created a vanilla Windows mmBusinessForm with no added code and put a plain mmButton on it with no added code. The only change was to add text to the ToolTipText property in the design window. I instantiate the form in my Windows app, click the button and the ToolTip goes away. I'm using MM v2.2. I don't know it is an MM problem, but since the only thing I touched was the ToolTipText on the mmButton, I thought I would start here.
>
>You can try opening the mmTextHelper.cs file and setting a breakpoint in the SetToolTipText() method then run your application to see if anything unusual is going on.
>
>Best Regards,