I have an active simulation window open and I am able to pan and zoom in or out.
However, when I click the Zoom Fit button to see the entire waveform, nothing happens.
The Zoom Fit option does not work in Vivado Design Suite 2012.2.
Users can work around this by using the Zoom In or Zoom Out options to obtain the desired window size.
This issue has been fixed in Vivado Design Suite 2012.3 and later.