Red box Highlighting the entire work area of the Block diagram

[TCjr]

I have a thin red box highlighting the entire work are of the block diagram...I've checked for breakpoints but dont see any. I run the code and after completion the entire work area turns black for a couple seconds and then the red box flashes and the continue button on the tool bar is hightlighted. Any assistance would be great
tks

[EdDickens]

This is indeed a breakpoint.

You should be able to clear it by selecting your breakpoint tool from the tools palette and clicking outside of your main code area.

When your breakpoint tool is going to set a breakpoint, the tool is filled in with black. When is is going to clear a breakpoint, it is not filled.

You can also search for breakpoints from the Edit menu Find function. Click the Select Object icon goto Others and select Breakpoint. This will find all your breakpoints. Sometimes they get set by mistake and you don't know it.

Ed