As this is only occurring on your Win98 PC's, and only on the "print cheques" function, have you considered swapping the machine the print checks with an XP box (since you know that works)? Since you wouldn't need a monitor, even the cost of buying one new PC for the person printing cheques should be less than $600. Of course, if you have 10-15 people printing cheques on Win98 machines, the economics might change a little.