Smarbar,
Thanks for your response, it's appreciated. Unfortunately, this didn't work. I ran through the Add/remove and then a "change", but when the Mitel client then launched, it didn't run through the wizard again. If I run the wizard manually off of the Mitel button, it skips right over step 3 which is the one that allows you to click Exchange Calendar Integration.
I've also tried deleting the c:\Users\<username>\AppData\Roaming\Mitel. This allows the wizard to run again after launching UCA, but again, it skips step 3. I've searched for a registry entry with no luck as well. There has to be a setting somewhere on my PC that can be changed to get this back.
Anyone else?
-Bryan