What causes ProSeries to fail to load or startup?  It just keep circling in an indefinite loop.

I uninstalled Proseries and reinstalled it, and still instead of the login screen, I get this continuous circling, and circling motion trying to open the program. It can't be something working in the background or multiple programs opening simultaneously.  I did the Update, Update Refresh, Reinstallation, and other troubleshooting measures.