Any Adagio specification (cheques, invoices, statements, etc) will be sensitive to the printer driver being used. What may work for one printer driver may appear different for another. Is the machine that prints '2-page' cheques using the same Windows printer driver as the others?

One reason for this would be that some printers have a different top/bottom 'reserved' margin. It might be that the driver on this one machine uses slightly larger margins than the others, thus the entire cheque and advices don't quite fit onto one page. The solution would be to make sure that all machines are using the same Windows printer driver with the same settings. Because you indicated that Previewing a chque has the same problem, I suspect the printer driver is at fault.

You may also want to make sure you do not have 2 cheque specifications that have the same Title. You may think that the same cheque spec is being used, but in fact it may not. Remove any unnecessary specs from your data directory - AP cheque specs all have an AP$ prefix for file names.

Good luck!