"Double Window" Shown When Accessing Windchill - Makes Creo Unusable

Hello all, I am running Creo 5.0.4.0 with Windchill 11.1 on a Windows 10.1 machine. The computer is brand new, 2 weeks old. If this is not the correct subforum for this type of issue, please inform me.

I have an issue where the embedded Windchill browser in Creo shows two panes at once, and the result is that none of the functions of Windchill (and by extension, Creo) are unusable (see the attached image). I am unable to open any files through Windchill. Moving the cursor across the Creo window causes the panes to flicker.

So far, I have:

* changed my Creo browser from ie11 to chromium, and back

* restarted my computer

* cleared Creo cache folders

* launched Creo without any config files in my working directory (config.pro, activedrawing.dtl, etc.)

* uninstalled Creo 5 and deleted cache items, then completed a fresh install of Creo

My previous computer was running Creo 5.0.4.0 on Windows 7. I did not have this issue until I upgraded to this machine. I have submitted a priority 1 support case with PTC and have not had much luck. I'm hoping someone on here has seen this before. After a week of being unable to complete any work, I am willing to try anything.

These days, it seems like I'm making support cases and forum posts every other day. I may have to upgrade to a program that actually works, such as SolidWorks. Getting Creo to be reliable (read: function with its designed prupose) is proving to be more difficult than it's worth.