Problem with Icons under the Design Tab

[blanch2010 via AccessMonster.com]

For some odd reason I have two icons that are doing nothing. This just
started. The "Add Existing Fields" and the "Property Sheet" icons are dead.
There not grayed out and they click like there working but no.

I've uninstalled, re-installed, with the same problem.

Has anyone got a fix for this problem?

Thanks
Don