I just found Greenprint and I love it. I had Fineprint, but I feel Greenprint offers more and the interface is better. I have noticed that if a single page is printed and the Duplex option is selected, GP will actually print the single page in duplex mode. This causes issues when I print on letterhead - it prints on the opposite side of the letterhead. I know I could uncheck the duplex option in GP every time I print a single sheet, but I think this is a valid enhancement. Perhaps you could program GP to detect a single page is printing and suppress duplexing automatically. Thanks.