LisaCalc has difficulty handling documents over 400 blocks long. If
you try to build a file that large, an error may occur after you
save and put away the document. If you attempt to redisplay it,
you may see a dialog box saying "Unable to Redisplay the Document."
These problems have been fixed in Lisa Office System Release 3.1. The new
LisaCalc size limit is approximately 700 blocks (350K). Larger documents
still require much more time to calculate, update, print, and save.