Protools M-Powered quits session when trying to create a new session on my MacBookPro

[Edavis229]

Hi please need help. When attempting to start a new session using Protools M-Powered 8 it lets me create a session name then it quits. The error message says Protools quit unexpectantly. Can someone please give me details on how to stop this problem so I can enjoy making music please. I am using a Mac Book Pro. Specs are.
Model Name: MacBook Pro
Model Identifier: Macbook Pro8,2
Processor Name: Intel Core i7
Processor Speed:2.2 GHz
Number of Processors:1
Total Number of Cores:4
L2 Cache(per Core): 256kb
L3 Cache: 6MB
Memory: 4GB
Boot Rom Version: MBP81.0047.804
SMC Version(system) 1.69f1
Serial Number(System) C17fc2GMDF8X
Hardware UUID: 241AAC3A-A13D-SF16-88FA-26122417529F
Sudden Motion Sensor:
State:Enabled

[Edavis229]

Guys I got the error fixed I seen it another thread. So I followed the details when booting up press down on"3" and "2" together and that takes it to 32bit since Macbook Pro is 64bit. But now I am having problem with recording to my external harddrive the error msg comes up" Iomega HDD" cannot be designated as an Audio Record volume because it is not a valid audio volume." And I ran the Verify disk Permissions on the main harddrive from another thread I found it still isnt working for me. Please can someone please help me with this problem, will be greatly appreciated.