My wife uses the family Cube (I had to switch to a G4 Quicksilver when my cube was, according to Apple, beyond further repair). Anyway, we had both upgraded to OS 10.3.7 a week or so ago, and everything seemed fine. But, in the past few days, two things went wrong on the Cube: (1) I could not install a new wireless hp Deskjet 5850 printer on the Cube (even though I had no trouble whatever installing it on the Quicksilver), and (2) her Epson Perfection 3170 scanner stopped scanning in the middle of a scan (after already having scanned several photos), and we were ready to send it in for repair before investing in a 1-hour long distance call to Epson Customer Service (which, BTW, was top-notch--BRAVO, Epson!). ***Both*** turned out to be matters needing ***software/driver updates*** to cope with 10.3. But, golly-gee McGee <stronger expletive deleted!>, all had been fine with 103.x, where x<7. After retrieving and installing the latest updates from the appropriate web sites (Epson scanners also use newsoft.com, BTW), all is again working fine. Both the new hp Deskjet 5850 printer and the Epson scanner are happily purring away on the Cube. [And, as an aside, I have to say that the wireless networked hp printer is a little gem. It discounts in the US for about $150, but I got a brand new one through the "New and Used" section of Amazon for US$108 + postage and handling, or US$119, total. -- Highly recommended.] So, word of warning: if you are having trouble with peripherals after having installed OS 10.3.7 on your Cube, consider updating the driver software. --Steve