Apple Logic Pro Crashing after Apple Security update

Question

Everytime I try to open up a Logic Project in my 3.0 Ghz Mac Pro Logic will not open and just crashes. This started happening after I updated with the new Apple Security update. Most of the Logic Projects were done when I had the 2.5 Ghz Quad. Not sure if it was the Security update or using the intel mac to open older projects.
My current set-up Apple Mac 3.0 Ghz Xeon chip Configuation. 3 gb of memory.
Any help on this would be a great. I have a performance in three weeks and have to get this sorted out before hand so I can master my instrumentals.
Steve

Answer 1

I have the Mac Intel 3.0 as well, and it's working pretty well. I do open up Logic tracks that were created on a G5, with only one big problem, all of the program change boxes become checked. Also, the old environments can cause problems.
I notice your profile says you're running system 10.4.6. If so, you should upgrade to at least 10.4.8. Trashing your preferences is also good, as is repairing permissions. 3 Gig of memory should be fine until you go nuts with plugins.
I've upgraded to 10.4.9, but you have to download the combo install from the Apple web site. The incremental upgrades create problems.
After you've upgraded Logic, try opening up a blank Autoload. If that opens, then the program is working, at least that far. You might have to rebuild your Environment from scratch. No fun, but it will eliminate problems from earlier sequences. Good luck.