Although I never saw an "official" OK from Pinnacle, I upgraded soon after 10.3.4 was released, due to a down period of several days in early June. (Hey, I felt like living on the edge) So far, so good. I had my only crash two days ago during a complex render. (Several nested sequences overlaying each other). 10.3.4, along with FCP 4.5 and CW 4.6 has been the most stable Panther set up to date for me.
Scott Shucher
AppleCart Digital Video
http://www.applecart.tv
G4 1ghz DP, 1.5Gbyte RAM, FCP HD 4.5
QT6.5.1, CW 4.6, Pro Analog BOB, Atto UL3D, Medea RTRX640, Huge MV 1.8Tbyte, Stealth Serial Control, Radeon 9000
