Crash on imm32

[Aric Stewart]

Whoops, looks like i forgot to put in that protection when i coded that 
section.

This fix is exactly what you need, i did it most other places that data 
is used i just missed this one.

thanks
-aric

Mike Hearn wrote:
> You could just protect it with a 
> 
> if (!data) return FALSE;
> 
> If I had CVS access at work (stupid corporate politics) I'd submit it
> myself, not a hard fix....
>