property grid interferes with accelerators

Hello,

My app is a classic MDI app similar to the drawcli sample. I added a property grid in a pane to it. When I type in something into a text field in the property grid, it interferes with the accelerators defined for the app.

For example there is an "R" accelerator for drawing rectangles. I cannot type the letter r in the property grid (the accelerator is invoked instead). I can only type letters that are not used as accelerators.

The strange thing is that I cannot recreate this in the Codejock drawing client sample (in other words, Codejock sample works ok). What I am doing wrong? What should I check?

Thanks for opinions
Vaclav