OS X 10.4 vs. 10.3 incompatibility

[John Vokey]

I have encountered a strange system incompatibility.  Stacks that ran/ 
run fine under Mac OS X 10.3.x, produce the following peculiar  
behaviour under 10.4.2 (whether using the MC or RR IDE).  I have a  
slider in a group that also contains a default (throbbing) button,  
which is to be clicked when the slider is in the position the user  
wants.  All is fine under 10.3.x (i.e., the button throbs and the  
slider tracks the mouse as the user slides it back and forth); under  
10.4.2, the button s-l-o-w-l-y throbs (i.e., you can see each step of  
the throb animation), and the slider no longer keeps up with the  
mouse (i.e., it lags by a lot).  It is like the whole system has been  
slowed down by a factor of 2 or 3 (i.e., 100 or a 1000-fold).  Yet,  
other default buttons throb correctly.  (I have no other sliders in  
these stacks).  It is clearly not my code (indeed, I have used this  
group successfully since at least MC 2.2, and probably before, and on  
all other versions of OS X).

I receive the list in digest mode, so please respond directly to me  
if you have any insights.



--
- JRV
There are 10 kinds of people:  those who understand binary, and those  
who don't