Hi Willy and Will,
Thanks for the suggestions.
I followed Willy's suggestion with Windows Registry. Instead of deleting the whole key, I opened both servers - compared under [HKEY_CURRENT_USER\Software\Tracker Software\PDFXTools\...\ToolsView]Layout\] and found the difference between my servers that was affecting the appearance. Ended up only having to modify one registry key.
Thanks again everyone for the help!!