Launching Aperture issues

Question

When I launch Aperture, it initializes by showing "opening Aperture library" but after a few seconds it stops and does not open the program.  How do I launch Aperture?  It worked before, not anymore.  I've downloaded latest updates, but still have issues.

Answer 1

Allen,
In response to your request, here's my iMac's information:
Let me know if this helps....
  Model Name:          iMac
  Model Identifier:          iMac11,2
  Processor Name:          Intel Core i3
  Processor Speed:          3.06 GHz
  Number Of Processors:          1
  Total Number Of Cores:          2
  L2 Cache (per core):          256 KB
  L3 Cache:          4 MB
  Memory:          4 GB
  Processor Interconnect Speed:          5.86 GT/s
  Boot ROM Version:          IM112.0057.B00
  SMC Version (system):          1.64f5
Aperture:
  Version:          3.1.2
  Last Modified:          6/4/11 7:02 PM
  Kind:          Intel
  64-Bit (Intel):          Yes
  Get Info String:          Aperture 3.1.2, Copyright 2005-2011 Apple Inc.