trouble with TeamViewer (control getting stuck? accessibility view?)

I'm logging in to a Windows 2012 computer via my Mac with TeamViewer.

I often get weird things happening.

a) I start typing and menus and screens just pop up all over the place, instead of the letters I'm typing. Seems like maybe it thinks I'm holding down the control key? or something else.

b) There is a blue box around the input focus or whatever I click. Something for the blind maybe? I have no sound on the Windows 2012 computer. But whatever. I think it's trying to read everything to me.

Sometimes I can fix this with logging out of the remote computer, and then logging back in again.

Is there something else to provide a fix?
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Menus popping up means Alt key is stuck.
greghollAuthor Commented:
Sorry that doesn't really help. Indeed, the Windows "thinks" Alt is stuck. (or Control, as mentioned in my post). But you see, the keyboard works just fine on my local computer. And the keyboard of the remote computer also works fine if I go their personally to work on it (i.e. without TeamViewer.

Thanks anyway.
Paul SauvéRetiredCommented:
Check that you at least have the latest versions on both computers.

I had the same problem the other day with my Win7 Home Premium & my friend's Win7 Pro.

The only solution I found was to close the session & restart my PC.

Also, I have a new message saying my antivirus and firewall are not working. This has happened since my last update to TeamViewer ver. 10.0.45471 on July 72, 2015!

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greghollAuthor Commented:
I installed the latest version. Works for now. Thanks
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