problem with CEdit in CDialogBar

Hello,

please help me with a special behaviour of a CEdit-control in a CDialogBar:
My CDialogBar is a member of my MDI-mainframe-class. The menu of the mainframe have an item with an accelerator "r".
Now, if I want to type the letter "r" in my CEdit-control, the menu-item (with the accelerator "r") will be called.

How can I type "r" into the CEdit-control?
How can I handle it?

thx.
Ralf