Quote Originally Posted by ping141 View Post
One theory I came across was that Leo generally uses the GPU more than Tiger, so that it will become hotter. I can only speak for myself, but my x1900 worked like a charm for a year with Tiger, and crashed repeatedly with Leopard. Every morning the machine would have frozen from just being idle. And Quartz Composer gave me hourly freezes when running a bit hard.
its not nice to go from rather stable 10.4.11 to the instability and poor performance of 10.5.1-

drives me crazy - every couple of years - the entire system gets broken - and we have to start from scratch-
its nonsense.

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i get the feeling there are significant numbers of bugs not resolved in 10.5

for me though the main problem is terrible performance -