ardour 2.8.16 wont start

anyone help with this?
Process: Ardour2.bin [740]
Path: /Users/USER/Downloads/
Identifier: org.ardour.Ardour2
Version: ??? (???)
Code Type: X86 (Native)
Parent Process: launchd [266]

Date/Time: 2014-03-28 18:39:32.199 +0100
OS Version: Mac OS X 10.7.5 (11G63b)
Report Version: 9

Interval Since Last Report: 9545132 sec
Crashes Since Last Report: 131
Per-App Crashes Since Last Report: 11
Anonymous UUID: 6D320543-17F8-4CDB-A82F-34019F4D6701

Crashed Thread: 0

Exception Codes: 0x0000000000000002, 0x0000000000000000

Application Specific Information:
dyld: launch, loading dependent libraries

Dyld Error Message:
Library not loaded: /usr/local/lib/libjack.0.dylib
Referenced from: /Users/USER/Downloads/
Reason: no suitable image found. Did find:
/usr/local/lib/libjack.0.dylib: stat() failed with errno=13
/usr/local/lib/libjack.0.dylib: stat() failed with errno=13

This is the first time i have tried to open ardour. do you recommend me changing the version of Jack?

One of two things is my guess…

  1. A permissions issue. Have you ever been able to open Ardour?

  2. A mismatch of versions of Jack and Ardour (One is 32bit and one is 64bit possibly).