Thanks for investigating and confirming it's not just me!I've moved the code from mouseEnter to mouseDown and the code from mouseExit to mouseUp.  If I press the mouse button over the button and, whilst holding the button, move the cursor away from the button so I can see it properly, I can see the ...

Sure - here's a link to an example file:https://workspaces.acrobat.com/?d=AcqPCiwAVOHgmcBW4vvdOASo if I click into "First name" so it has focus, then scroll down and move my mouse over the "Add Expense" button, the form jumps back up to the top where the "First name" field is.

I'm new to Livecycle and have taught myself the basics using the SmartDoc Technologies book on the subject.  In the book it demonstrates how you can change the color of a button when you move the mouse over it.  I've tried this out and have a found a problem that I can't fix - this happens using the...