Update/Refresh button

[ilovelagar]

Hi,

I'm looking to create a refresh/update button for my userform. What I have is various textboxes, of which the last textbox contains input from the other textboxes.

For example, I have 3 textboxes. The first one contains months, the second contains years, the third pulls from both the first two.

First: August
Second. 2009
Third: August 2009

What I need is if I change the text in either the first or second textbox, I can click the refresh button and it'll update the third box.

Any ideas

Cheers,