Double cursor appearing

[Paul Dupuis]

Hello hivemind,

I have a customer running our Windows app in a virtual machine under 
Linux and they are seeing a "double cursor".

See screen shot here: 
http://www.researchware.com/livecode/uselist/doublecursor.jpeg

Has anyone else seen anything like this and have any idea what it may be?

My Linux skills are horribly rusty. I don't even have Linux (any flavor) 
setup on any computer currently. I am really hoping someone has an idea 
what the root cause is here?