1. ZoomUndo button only works for one iteration when the view has images.  The Data Viewer manages this.  If the view has no images there is some system limit of iterations backwards.  ArcView itself manages this.
    
   
2. Under Windows 3.11 (and probably 3.1) (with older Data Viewers - current Data Viewers will only run in Windows 95 or higher), the ACECs theme can create a floating point error when zooming in.  The ACECs will not redraw.  The project will not crash however.  If you get the floating point error, simply uncheck the ACECs theme (the check which draws/undraws the theme) and re-check it.  The ACEC and other data should now draw as normal.  This problem will only occur at some times and not at other times (reason unknown). It's possibly a problem with the hatched pattern.  Try using the Legend Editor to change the pattern and see if performance improves.
    
   
3. Resizing the View window manually with the mouse in one direction may have the effect of cropped images.  The images will redraw if the extent is changed (either by panning or zooming). 

If more problems occur with any version of the MassGIS Data Viewer, please contact Aleda Freeman at (617) 626-1193 or email: Aleda.Freeman@state.ma.us

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Last Updated 11/20/2008
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