Buttons on User forms

[ggayathri]

I have about 7 forms, in which, I am trying to set the accelerator keys to buttons in dialog. (For example, O for Ok and C for Cancel). I choose a button in the design mode, then , select the letter (from the caption of the button, example, if the caption is Load, I choose L), in the accelerator key item in the properties box.
However, when I do this, I am able to set it only for buttons in a couple of forms. In other forms, even when I set the accelerator key value, the letter does not get underlined.
Can someone help please?
Gayathri

[romperstomper]

You'll probably get better help if you bother to acknowledge the responses you have had to your other questions, and Mark the threads solved when appropriate.