How do I get the highest resolution for my plot?
All of the image types can be exported at a maximum resolution of 800 dpi.
Version 4.1 and earlier:
Exporting the plot in a Metafile format will provide the highest resolution. Metafiles can be exported to the Clipboard (using the Copy Graph command) or to a file (by choosing Save Graph As and selecting Metafile from the Save as type pop-up menu). This is the most common format for exporting graphics on the Windows platform.