[pygame] Decrease in Performance

[Bruce Coram <brucecoram@xxxxxxxxxxx>]

I'm reposting this - my first attempt appeared to get lost.  Being a 
newbie I can not rule out incompetence!

What might the reason be for a significant drop in performance for 
blitting objects to the screen using pygame versions 1.6 and 1.7, both 
with Python 2.4.4.  We blit two surfaces, each approximately 900  x 900 
pixels in size, consecutively to the screen.  Using pygame 1.6 this took 
about 0.016 seconds but in pygame 1.7 it took about 0.024 seconds.  Can 
anyone help?  I had thought that new versions improved performance not 
degraded it.  The code is identical in both cases.

Thanks in anticipation.

Bruce Coram