Mouse scroll wheel problems

[Greg DeVore]

I am having a bit of trouble getting the mouse scroll wheel to work.
I have set up a rawkeydown handler that reads like this:

On rawKEyDown theKeyNumber
   if theKeyNumber is 65308 then -- mouse wheel down
     put the vscroll of group "View" into tScroll
     add 10 to tSCroll
     set the  vscroll of group "View" to tScroll

   else if theKeyNumber is 65309 then -- mouse wheel up
     put the vscroll of group "View" into tScroll
     subtract 10 from tSCroll
     set the  vscroll of group "View" to tScroll

   else pass rawKeyDown


end rawKEyDown


The problem is that Rev only seems to recognize the rawkeydown message 
intermittently on OS X and not at all on OS 9.  When it does get the 
rawkeydown message in OS X everything works as it should.
Any suggestions?
Greg DeVore
Blue Mango Multimedia
media at gregdevore.com
661-753-9335