On Wed, Jun 24, 2009 at 8:53 AM, Jack <jack@rybn.org> wrote:

However, there is something very strange if it's about memory because on my MacPro 2x2.66 GHz Dual-Core Intel Xeon, i have only 256 MB on the GPU and all works fine on it (only 2 fps but it is not so slow).
The size of the images are between 127x108 and 72x123 pixels (so the total size at 24bit is near 12 MB ! : 127x108x3x300/1048576 = 11.77 MB).

Most of the drivers have optimizations for images that are a multiple of 16 in width, so maybe try using 128 pixel wide images and see if that helps.