CTRL Key gets stuck ON

I am using Pocketcloud Pro to connect from my Asus Transformer Prime tablet to a Windows 7 Prof edition desktop.

When I use the CTRL key, the app thinks it is still turned on. So if you highlight some text, then hit CTRL-C, you now can not type a letter, as it thinks you are pressing CTRL-letter.

Hitting CTRL again 'fixes' this state, however this is a pretty significant bug. Note I have tried both turning sticky keys on and off in Windows and it had no effect.