Hello, yes I'm using cc 2014 since 4 days on a Wacom Cintiq. Presently on my old Cintiq 21UX, the new Cintiq 22HD I ordered for the CC was returned with a malfunction yesterday.(Wacom 'support' still haven't bothered answering to my problem I mailed them 5 days ago, so I returned the 22 HD)
But my straight diagonal line problem happened on both Cintiqs, presumabely this means it's a problem on CC then?
I used CS2 before & never experienced this problem.
I can get around this on Shape Dynamics-Pen Pressure & setting Minimum Diameter to 10%. Since 8yrs I have always had it at 0% to give me a good drawing line(thin to thick). Setting Minimum Diameter to 10% is not the solution as the line becomes a quite lifeless.
Anyway, I shouldn't have to compromise my drawing style I've had for past 8yrs on CS2 for this new CC.
Many thanks for your interest.