Progress Explorer Tool (PET) Not Connecting to Localhost

My apologies...We are running 8.03.410 with SQL

It appears we experienced some corruption within Progress as we were unable to start any of the Vantage Admin Tools and PET. After some research I found that the GUI and TTY folders could simply be replaced with known good copies (in this case backups). After renaming and replacing the folders we are now able to start and access the Admin Tools however PET will still not connect to the localhost.

 

Anyone have aany ideas on what might be causing this