Good morning folk's. I hope that this english version of post will not disturb the list. And I bag your pardon for any faults in english, I'm still learning the language. I'm trying to calibrate a quick silver dual with two apple display studio's, in OS 10.15 Well, I think that will be usual a non-working monitor profile at the end using ProveIT 4.2 (OS9), I have too an Optical, but no newest spyder. In fact I could made the profile with ProveIT and the result with photoshop are very, very good. I think that I only could to do that by ColorBlind video startup loader (even in classic enviroment) For my bad luck, I only has a spectrocam to made my reads for flat displays ( I have too: older spyder, DTP92 and Seqquel, but this devices could not do the job) Are there any other software that could give me X compatible profiles AND made this in the both monitors? Upgrade to Jaguar will be better? Many thanks for ANY advice, Adriano von Markendorf marken(a)centroin.com.br "I-C-Cm vitamin's inside" Rio de Janeiro - Brazil