Is this question in some way connected with SMEserver?
To me it sounds more like a Peachtree application problem, perhaps you have some reason for thinking SME is causing the problem?
Perhaps you have recently migrated from a different server to SME and now you are having problems?
Give some more info and people may be able to help.
OK just looked at your message again, what printer are you using, do you have problems printing other documents, other than cheques? Do you get any weird characters printed on the "blank" cheque?
Dave