Hi, thanks for the input. In fact this happens on a dual core machine. As for the Ipython version etc it is written at the end of my original email.
I'll try to see with the Ipython forum maybe. Not sure where it comes from, which is the difficult part (mpl, ipython, or...?) I'll also try to isolate some simple functions which does this... But this may be hard to do. thanks Eric ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users