SPG_Bezier does not unlock surface about sprig HOT 3 OPEN

I do see the chance in the code for Sprig to forget to resume autolocking and 
autounlocking.  What OS are you on?  I presume you're using HW surfaces?  Is 
there anything in particular I need to do to reproduce it?  Have you checked 
SPG_GetError?

I'm on Mac OSX 10.6.6 and am using a HW surface. SPG_GetError returns nothing. 
My code simply draws a few SPG primitives, a bezier blend, and then hangs when 
trying to Blit a surface via SDL_BlitSurface.

Can you send me some example code?  I just tried to reproduce, but I suspect 
the OS difference might matter.  If I can't reproduce it on Windows or Linux, 
would you be willing to try some local changes to Sprig?