My sincere apologies for all this hassle that you have been through. There is certainly something wrong with the prefs or may be scratch disk setup at your end. We will surely figure this out, you can always send me a PM or you can send me an email. You can also get in touch with our agents via phone or chat. Here are details on how to contact them: Contact Customer Care
Thanks,
Kulpreet Singh
I now have it working but think this is the problem.
When I opened Premiere Pro the first time it opened on my right monitor, so I moved it to my left monitor. I then moved the Start box over there also. No problem. When I was done I closed out PP. Then when I opened PP again, the start box would go back to the right monitor but only be the sliver that you saw.
I have found out that if I would resize the start box and just leave it on the right monitor it now opens at a large size and not the sliver.
So, I'll just leave the start box on the right monitor. No big deal. It seems the problem is solved. All that work for something so silly but something that I don't think should happen anyway. 