On Mon, Nov 21, 2011 at 1:53 PM, Jack 
<jack@rybn.org>
        wrote:
        
Hello,
          
          I am working on an installation on MacOsX.6.7 with Pd-extended
          0.42.5 and Gem 0.92.3 (compiled Sep 22 2010).
          The graphic card is a ATI Radeon HD 5770.
          On this environment, i can't get a stable frame rate. With
          [gemwin 50], i get sometimes with the abstraction [realFPS] :
          60 fps (strange no ?) then 5 seconds after 40 fps. Even when
          the scene is the same.
          How can i obtain 60 fps when it is write [gemhead 50] ?
          Someone has a similar problem ?
          How can I fix it ?
          Thanx.
          ++
          
          Jack
          
          
          
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