Hi,
Seeing your code would have helped. I think you problem is that:
PROBLEM:
form_load() event is triggered only when the form is brought into memory(RAM) from the hard disk, where it exists as a file. So, when you 'switch back' to the form (e.g. by ALT-TAB), then this event is not raised.
SOLUTION1 :
put the code from form_load() to the Form_Activate() event of the form. This event is triggered when you 'activate' the form by ALT-TAB or mouse click etc.
SOLUTION2 :
This is bit less practical, and I would suggest to stick to previous solution.
Unload the form(CODE : Unload Form) when you switch to the other form, and load (CODE: Load Form) when you switch back to the previous one. In this way, the form_Load() event will be triggered again.
Think that should solve your problem, if I understood it right.
Bye.