Accessing XenDesktop via APM, Citrix Desktop Viewer not displaying

I already have ConnectionBar (and ShowDesktopViewer) settings in the [Application] section of the ICA. But never mind, i found the problem! It turns out that the web plugin version I was using simply doesn't display the connection bar, no matter what is in the ICA. When I switched to a version that matches our user population in the field, ConnectionBar=1 (or possibly ShowDesktopViewer=On) had already worked, I just didn't know it until the switch.

Thank you!