Macros
"There's a little 'running man' in my System Tray. Where did that come from?" -- a curious cataloger.
This is what the little "running man" in the System Tray looks like:

If this little "running man" has been sitting in your System Tray for the last three days, then something is wrong. This icon appears every time you run a macro. You probably will never notice it if your macro runs correctly. But if you notice that something isn't doing what it should and you check your System Tray and find the little guy just running away to who knows where, then your macro has basically run off the road and needs to be stopped.
There are two ways of stopping the macro:
When the macro stops, you will be informed with a message box like the one below:

What causes a macro to run continuously?
That depends. Here are some possibilities:
Remember, the more complex your macro is, the more it has a chance to do something you don't want it to do.