Label Control Text goes to default after Screen Orientation change

Hi experts,

I am facing an issue of my label control defaulting to the original text
after the Pocket PC Screen Orientation changes.

I have anchored and dock my controls in my form and all my controls is
resize correctly after the orientation has changed. But when I change my
orientation, my label control text, which is populated during run time, has
its text changed to original. E.g in form design, i input the text as
"Label". when i run my application and load the form, my application will
update the text to "Test". but after i click on the Pocket PC button to
rotate the screen, my label text goes back to "Label".

Whats the form event that is called and triggered after each screen
orientation changes?

Hope to get replies from you soon.

Thank you :)
.