Hi I have a MBP 2.16 with 2Ghz RAM and an M-Audio Projectmix. I recently upgraded to OSX 10.4.8, to Logic 7.2.3, to Quicktime 7.1.3 and I have the latest driver for the Projectmix. I am now encountering problems with system overload and video sync in logic while using only a small volume of project content. I have hardly any audio files in the project (three tracks, no plug-ins) and am scoring a 1Gb quicktime file. Logic keeps freezing with core audio error message: 'disk is too slow or system overload' – absurd given the computer spec and the number of assets. I shouldn't have to run the video externally but have tried to no avail. There is also a problem with video sync. Although I have contiguous sync activated, the project doesn't play back consistent sync and there seems to be an occasional Wowing of the Video (not audio). Given a tight deadline, I thought I'd try doing the project in Live 6 but that seemed to have the same problem with the video, suggesting an issue with either OS X or Quicktime. This doesn't answer the question about core audio system overload in Logic though. I had no problems scoring longer films with loads of audio and plug-ins prior to upgrading all the software. I tried a soft reinstall of OS X to use an earlier version of Quicktime but this didn't work. Has anyone had similar problems? Any help greatly appreciated... Tuckshop Bandit

--- In logic-users@yahoogroups.com, "Tuckshop Bandit" <forums@...> wrote: > There is also a problem with video sync. Although I have > contiguous sync activated, I always turn contiguous sync off. It puts a HUGE hit on the CPU (which could explain some of your problems), and I've never had a sync problem with it turned off. Fred Story

Thanks Fred I've tried various permutations of sync settings, including having contiguous sync off, but the software still struggles. I've never used the contiguous sync facility before this project either and the computer was always fine running video on all default settings... if all else fails I'll clean reinstall the OS, backdate each bit of software concerned and test selective re-updating of each one. In the mean time I'll try and meet my deadline for this project by minimising assets and turning CS off, as you suggest. If it's CPU hungry I'm sure it's not helping matters. Cheers Jem