Refreshing Acrobat File

Does anyone have a trick for quickly seeing updating acrobat to changes
in a pdf file? I'm using Acrobat (5 or 7) on Linux and it complains
whenever I change my pdf, so I have to close acrobat and reload it
whenever I recompile my prosper document. Is there a clever way to get
acrobat to refresh the file (or another pdf viewer than handles the
overlays, etc from prosper?). Ideally this would be some command I could
run in my prosper script. 

Thanks,

Ben



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