As much as I love my MacBook and iMac, I will admit I have more problems printing coupons then others. I have noticed a big difference since the latest update of os Lion. Thanks to Mich-ael on Facebook for finding a solution. I hope that this helps you also if you are having problems not only on a Mac but on a PC as well.
This is what Mich-ael found:
We’re sorry to hear about your trouble printing. An update has been released to support printing on Safari 5.1 browser in native 64bit mode on Mac OS X Lion. You should also be able to print from your Firefox browser. If you have previously installed the Coupon Printer and cannot print coupons, please uninstall the Coupon Printer and reinstall it from this link http://print.coupons.com/c?ouponweb/help/print/instal?l.html to get the latest version. We hope this information has been helpful, please let us know if you continue to have issues printing by sending an email to support@couponsinc.com. Thanks for your support and cooperation
When you go to that link there is also the coupon printer update for Windows!
Hopefully that will help, I also have a few older posts that you can look through if you need more info and help.
How to print bricks coupons if you are having trouble.
Trouble finding and printing coupons? This might help!
Let me know if that worked for you!

Part comedian, part Dad, part athlete. He will boss around your children while they play ball.
Just as angelic as she looks, this girl could easily raise a Village by herself, and all the children would grow up to be President.
Self proclaimed, she would be a webkinz dog. Because, "they're cute, and puppies are too. And they're sweet and they always get along with other puppies."
This mini-Martha Stewart can handle ANY craft you send her way. She isn't all bows and rainbows, she's got karate kid moves!
Not "Pick-Me-Up" like caffeine, she wants you to pick her up! AND NOW!
Anything that can be destroyed WILL be destroyed!
Practically Perfect in Every Way for now! Nicknamed "The Panda" she is rolly polly and lives by the motto, "the little one, is KING!"
The resident Labradoodle, Miller got his name because Mom won and got to name the baby! Need something chewed up? He'll take care of it. Especially if it's expensive..
Do you hear me screaming at your house yet?
I can not thank you enough for this. We have been having the hardest time with our mac aince my husband updated it. Thank you!
Wahoo!! Thank you so much, I can finally print them! 🙂
I hope someone can help me……..I used to be able to print coupons from my daughters macbook, but since she came home from college it has been a no go, for some reason it will print the coupon but without the picture & no upc code. She says that she did not change anything (yea right!!). I have tried just about every update I can think of but nothing seems to work, I don’t know how to fix it. Any ideas at all would be much appreciated at this point. TIA!!!