So, I was having a problem getting the 3-up to print.  My ChkReg table might have got corrupted, so I reimported it from Excel, and when I select 3 checks to print from ChkRegF, all three work fine on a single page.  BUT, if I select more than 4 or more, just the first page shows up, with no second page, even though my CheckRegT shows that all checks selected were printed.  If I do one-up I can do all, but my checks are 3 to a page.  So ALMOST everything is working fine.