ACA version? ANNOALLVISIBLE turned off, removing extra scalelists from the
file in ACA2008, PURGE regularly (you provide no details on your version),
quantities of little tiny viewports in each layout, amount of Xrefs, file
size (2D or otherwise, and ACA draws 3D all the time unless you only use it
to use LINE and Pline commands), and your PC specs not being to snuff are
the basics to check (again, you provide no details).
Shortcuts noted above, while great tips, have nothing to do with REGEN
speeds jumping between viewports or layouts. Nothing at all.
You also did not mention if this is an ongoing problem with all files, or
just today's file?
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Dean Saadallah
http://LTisACAD.blogspot.com
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