Hi Kate,
Well, assuming that nothing else has changed in the interim (which can be tough to say with certainty in these days of automatic web updates
), it's possible that there has been some change in the interaction between the specification printer and your printer driver.
If you edit the specification, does the print preview show the same behaviour? If you select one of the lines, and display its Properties, does the length of the line extend down the length of the form?
Could you be including new items on your invoice that have a different "style code" that wasn't referenced before?
Sorry for the inconvenience - unexpected changes are always the biggest nuisance of software upgrades (sigh).