Just bought a Macbook pro and it keeps crashing - HELP!!!

Can anybody help me?

I just bought a Macbook Pro with # 2.4GHz Intel Core 2 Duo, 4GB (2x2GB) RAM, 320GB 5400rpm Hard Drive and it keeps crashing! I have a Presonus Firepod and use Cubase SX3.

Can anybody please help me! I have a remote recording gig next Thursday and I need to take care of this before the show. Are there updates or something that can take care of this?

sx3 will not work on your intel machine. its was coded for power pc macs and you will need to upgrade to cubase 4 or newer

Thanks!

Do you know if I can upgrade to Cubase 4 or 5 via the internet or do I need to upgrade to 6?