--- In logic-users@yahoogroups.com, "ygkaplan@..." <ygkaplan@...> wrote: > I recently upgraded to Mac Pro and having big crash > problems. I'm running 3gb ram, Logic 7.2.3 and a Motu > 828mk2 on this system and latest software. When i want > to insert a time signature or try to go to one of the > menus logic crashes. After the crash if i start logic > i can't get any audio from 828. The only way is to > reboot the system. But if i try doing the same thing > on the same session it crashes again. <snip> Hi Kaplan! I have a similar configuration, Mac Pro 2,66 with 828mk2. Most of the time it runs smoothly, even when I run multiple Kontakt instruments, EXSs etc. Apart from Altiverb and Melodyne I use only logics own plugs. A thing that I know will cause Logic to unexpectedly quit on my system is to max out the ram. I have 4 Gb installed and Logic hit the ceiling the other day at around 40 sampler instruments, A few Kontaks but mostly exs. I have also experienced crashes on inserting audio directly onto the arrange window from finder using a key command and also when clicking the bounce button on the master output but that has only happened on very large sessions and I suspect it's a ram issue. Like you I sometimes need to reboot after these crashes, it is not as stabile as Logic 7.1.1 on my G5 but it is not at all as bad as your situation which sounds extraordinary. Your configuration is capable of working nicely. How much ram do you have installed? I have 4 which is not at all enough but the sessions are huge before that becomes a problem. When I hit the ram-ceiling I fiddled around with the exs' virtual memory settings and purged the Kontakt instruments and that did the job. Have veryfied/repaired disk permissions? Are you experiencing other kind of problems with the Mac? Have you tried searching out which sampler instrument og group causes the cue crashes? Ram could be the problem... I don't know what you did when you switched to intelmac but if you migrated the system from an older computer like I did you could be experiencing oddities from that process also, unlikely maybe but possible. Hope this helps and that you will be able to fix the problem in time. Regards Ginge