3ds Max :: Error - Invalid Flyout Button ID?

Just installed 2014 and have a few issues right away. I checked out the New Features webpage and attempted to change the Viewport Layout using the new Menu dropdown. When I click on any other layout other than the default the whole UI begins to flicker and Max completely locks up and I have to end the process to close it.

Now when I load Max I get an error box that says: "Invalid flyout button ID!" After clicking OK on 6 identical successive Error boxes they are all gone and Max is OK.

I uninstalled my display drivers and installed the latest Max Performance driver 311.50 for my Quadro 4000.

Update: I removed a custom toolbar that I created thinking it might be throwing the error and then relaunched Max. Same error. Then I reinstalled Max using the Repair/Reinstall feature instead of completely uninstalling and reinstalling. When I open Max I still get the "Invalid flyout..." error. FYI, upon my initial install and first opening of Max it opened normally. It was only after I had the switching workspace event that this error stated. The Reinstall feature did not solve it.

3ds Max Design (3D Studio thru Max 2014), ASUS P9X79 Motherboard,
Intel i7-3960x, Hydro H80 CPU Chiller, 32GB DDR3 Ram,
Quadro 4000 Display Adapter