Hi, First time in forum, be gentle..I've been using cubase for many years, trouble free until today. I'm using cubase 4 with a mac pro dual core 2.66, and 2 gigs of ram.I'm not sure how I got into this mess, but here's whats happening.I'm able to open the program without any problem, but as soon as press play, nothing happens, then when I press stop it will freeze ( colorful spinning umbrella ) and then close out of the program. this also happens if I click on the mixer, or the curser. I can even open the program and just hit play in the transport, without any tracks or files open and it does the same. I've re installed cubase, osx 10.4, and any updates I could get for both programs, and still...,back to square one. when the crash occures there is a message saying that cubase had to shut down,but osx and other programs are un affected. I've tested garageband,and itunes and they work fine. the rest of the message I get is info to send to apple, which i do not understand. Can anyone pleas help me with this?