Mosaic Screensaver not working

Ever since I installed Snow Leopard, my Mosaic screensaver hasn't worked properly. The symptoms are:
1) it locks on cycling between only two pictures, despite having a library of several thousand pictures to choose from. (different pictures on each invocation)
2) it tends to show white rectangles instead of pictures, and the color choices are wrong, at least compared to how well it worked under Leopard.
I have tried deleting the appropriate (as far as I can tell) plists, but that hasn't helped.
So tonight, I tried playing with some settings in the screensaver control panel, and when I used the "test" button there, it worked perfectly. But it still fails if I let it come on automatically.
Is there anything else I should be doing and/or correcting to make it work? I currently use our "last 12 months' iPhoto album as the data source, and it has about 4,000 pictures in it. Is this too many? if so, why?

It sounds like we are having similar problems:
Since upgrading my MBP to SL (and patched to 10.6.2) my mosaic screensaver is not working properly:
1) I don't have the issue with only 2 pics cycling, however my pics are on the HDD so may not be having the issue mentioned re: wifi connection to external drive
2) It chooses very dark pictures for white and light grey, and some of the colour choices are bizarre to say the least! Certainly no where near as good as Leopard
3) Following the completion of the mosaic when it stops, it 'jerks' when restarting the image and the next mosaic. Its not a 'jerk exactly', it actually zooms into the image very slightly, before starting the 'shrink' into the next mosaic.
Anyone got any solutions?

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Message was edited by: amsgator
Message was edited by: amsgator

Mosaic Screensaver not working

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