Digital BW, The Print

Hi Everyone,
I am hoping that some-one here could give me some advice on the  
following calibration issues as I have completely run out of  
solutions and tried to contact Colorvision but have received minimal  
support there--an e-mail with a link to the updater.  Understandable  
I suppose as on the update it says they do not support it although  
the Spyder is for MAC
System: OSX 10.4.8/ G4
La Cie 22 blue IV monitor
Optical software updated to 3.7.7
Photoshop CS2.
1.  Following numerous  calibration attempts with the Spyder I get   
error messages such as
(-48 fffffdo icc displayprofile.cpp 462)
  (the monitor profile is defective.) or message
Calibration is successful and the screen then turns a fairly dreadful  
green color.
Attempted solutions.
1. uninstalled, re-installed up-dated software.
2.Tried a different spyder  (same results)
3. Tried a different monitor  (1st attempt- failed/2nd attempt- 
message appears to be defective)  I went ahead anyway as I wanted to   
see how defective:  A sepia toned  image in Photoshop was bright blue.

 From the above I am leaning to software issues or video card.

To be honest I have never been particularly impressed by the Spyder  
but as I do limited color work have not been too thrilled at  
investing $$ it appears are required to get another system.  Does  
anyone have any ideas for either
The cause/solution to the above or ideas for
An  affordable calibration system that actually  works with MAC.
Thanks in advance.
Siobhan