I'm following this thread as I am having trouble lining up checks and printing single checks as well.  What a joke!  I've used quickbooks for years, but the minute I was forced to go to the online version-I cannot use it to write checks!  Which is the only reason I purchased it.  I have spent hours researching online and calling with no result.  This is a software problem and I feel Quickbooks should be changing the software so it is compatible for all of us.  The last word I got was that I need to purchase checks from Quickbooks.  Well I have intuit compatible checks from Costco, that I've used with my old program for years.  The top one prints fine, the second one a little high and the third too high. The feed changes as well, which could be due to the options in printing-maybe press the green button, maybe press the print button on the top, or even right click and print. ??? Why not make it one way to print and keep it the same?   Guess I will be looking for another program or handwriting checks--very, very frustrating. I am over wasting my time on this.