I am having a problem using tkmedit and tksurfer with Freesurfer. Freeview is working. Below is the tkmedit error and relevant specs. Any suggestions are welcome.

General Specs
Apple OS 10.6.8
Processor: 2x 2.26 Ghz Quad-core Intel Xeon
16 GB DDR3
Freesurfer Ver 5.3.0
Chipset Model:    NVIDIA GeForce GT 120

Graphic card Specs
 Chipset Model:    NVIDIA GeForce GT 120
  Type:    GPU
  Bus:    PCIe
  Slot:    Slot-1
  PCIe Lane Width:    x16
  VRAM (Total):    512 MB
  Vendor:    NVIDIA (0x10de)
  Device ID:    0x0640
  Revision ID:    0x00a1
  ROM Revision:    3386
  Displays:
VG930m-3:
  Resolution:    1280 x 1024 @ 60 Hz
  Pixel Depth:    32-Bit Color (ARGB8888)
  Display Serial Number:    QC2094821097
  Main Display:    Yes
  Mirror:    Off
  Online:    Yes
  Rotation:    Supported
Display Connector:
  Status:    No Display Connected


Code
[Victor-Marks-Mac-Pro:subjects/bert/mri] victormark% tkmedit bert/ brainmask.mgz -aux T1.mgz -surfs -aseg
Couldn't create output file .xdebug_tkmedit^CKilled
[Victor-Marks-Mac-Pro:subjects/bert/mri] victormark% cd ..
[Victor-Marks-Mac-Pro:freesurfer/subjects/bert] victormark% cd ..
[Victor-Marks-Mac-Pro:/Applications/freesurfer/subjects] victormark% tkmedit bert/ brainmask.mgz -aux T1.mgz -surfs -aseg
Converting main surface: 100% done.      
Converting main surface: 100% done.      
Converting pial surface: 100% done.      
Converting main surface: 100% done.      
Converting main surface: 100% done.      
Converting pial surface: 100% done.      
LoadSegmentationVolume main aseg.mgz /Applications/freesurfer//FreeSurferColorLUT.txt
Bus error