Keyboard combination caused problems

I was looking for a keyboard combination for a program I was using via Teamviewer, but instead of passing the correct keyboard combination to the intended program, it completely **bleep** up my view of the remote PC on Teamviewer.  It was either a combination of:

Ctrl-Alt-Home, or 

Ctrl-Alt Shift-Home

The net effect was that now my remote view only shows a portion of the remote screen, so I have to use the sliders on the edge of the screen to see the full remote PC desktop.  The remote screen is very narrow, so I can't see the full screen all at once now.  What is the keyboard combination that will fix this issue?  If there is no keyboard combination to fix the problem, how do I fix the remote view?

Thanks,

Rick