Thomas,
Box 34 is supposed to increase Box 14 by the amount you have entered on the Benefit field of the last Paycheck for 2010.
If you do not want this to occur, set Print > T4 > Slips to display and manually change the T4 displayed in Excel before printing. If you do this, do not XML the T4 Summary to CRA as your reported amounts from the XML will be different from the altered T4.
Regards to All,
Martin
