in WIN7 using incredimail and beta IE( I suddenly lost ability to print from either program. If I use firefox and thunderbird there is no problem printing.
Windows live mail also has a printing problem...I think I heard somewhere that the print data must go to a temp file enroute to printer and that the file location somehow may have been lost or changed...how would I find out what that locatio is and should be.
I had a problem like that while using Win 7 RC1, if I remember correctly it turned out to be something to do with Adobe Reader, which I had open in IE having crashed while trying to print something and it had blocked other programs from printing too. Just had to kill Reader in task manager and it worked after. May not be the same for you but might give you a clue.