Hi Darwin,

>I noticed that the UIEnabled and the Activate/Deactivate events of a pageframe (base class) keeps on firing although I did not changed the active page.

Umm, that sounds odd, it should work what you are doing. Anyway, in my PageFrame their is an Assign_Method that fires on the ActivePage property, what you can do it this:

lparameters vNewValue
dodefault(vNewValue)

*Do whatever you need here

And you should be fine. Not that you mention it, I probably could put some kind of Method in as a hook to that function, but like I said, Activate should be working for you, what other code do you have in the form?