We ran into something similar with a client right after we installed 4.5 for them. In their case the sales amount of the transaction was getting doubled up. The workaround was to have them preview the Daily Sales Journal, answer No to print the other reports (Gross Profit, Sales Recap, etc), print the Daily Sales Journal as normal as well as all other subsequent reports, answer Yes to update and print the Daily Transaction Register. It eventually got fixed with a PU.