Anyone else have white boxes when connecting to Mac?

Whever I connect to my 2012 Mac Mini server (1TB SSD 16 GB RAM) I can't see the contents of any window. They just look like white boxes. also, the area where the desktop icons are is also just a giant white box. Any idea what is causing this? I want to love this remote solution and it has been pretty flawless everywhere else but I need to connect to this and 5 similar machines with some regularity.

Thanks for any insight you can provide

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Release Notes: Version 1.91, February 2015
Unattended Access (Beta) is live! Unattended Access, a feature requested by a lot of our customers is live now. Currently, it's in beta. You can add up to 100 computers per Technician subscription. They can also be accessed by your organization members. My Computers list in Zoho Assist home page will always display the online status of your unattended computers. You can rename the computers whenever you wish. Currently, Unattended Access can be configured only for Windows computers. Nevertheless,