10.5 is not that smooth on my G5 powermac - suggestions why?

Hello everyone;
Just a quick question on OS 10.5.
I just upgraded from 10.4 and I have to say that 10.5 is not as smooth as I thought it would be on my machine.
I have a Dual 1.8 Gh/z G5 Powermac with 1.5gig of RAM and a 128mb ATI graphics card and a 250gb HD.
In things like spaces, running multiple tabs & windows (in safari) or having magnification on the dock - it runs a rough. Whereas Safari and the dock ran fine in 10.4.
When magnification is on for the dock, I get tearing and a slow frame rate as the zooming effect appears rough and jolty.
In Spaces, the frame rate is low as well; making the zoom out into spaces mode appear jolty again.
Also, mostly in Safari; when I change to it; it takes considerable time to make it that dark grey colour to indicate it is an active window.
What I would like to know is OS 10.5 coded relatively poorly for PowerPC than Intel? Is my RAM not enough? Do I need a better Graphics card? or a combination of all the above?
How should I, or should I, upgrade my hardware?
Thankyou,
Nate.

In general that's true, and it's also true that throwing hardware at the problem might make it go away. For example, with the problem I had, I could have bought a whole new computer, and with the increase in processing power the amount of system resources that were being taken up by Apple's faulty usb drivers might have remained the same proportionately, but I would have noticed less because overall processing power would have increased so significantly.
My suggestion is to do some analysis and address the root cause of the issue rather than the symptoms first, rather than spending money on band-aids. Also, Leopard, at least with the 9800 graphics cards is definitely flawed. Some of the screen tearing he mentioned could be a symptom of the graphics card overheating due to the OS not controlling fan speed properly.

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Hello:
Two questions--
1. Why do the music videos I purchase on iTunes (and then play on iTunes) freeze up for a few seconds after I push play, but then otherwise playback is OK?
2. Why does the "spinning beachball" appear almost everytime I press play for a video?
Comment--
Given that my Mac more than meets the minimum system requirements for video playback, I think the videos should play smoothly from start to finish, especially at $1.99 a piece. I suspect that the playback bugs listed above are the result of iTunes not being that good/powerful of a video player. Hopefully, these issues will be resolved upon future iTunes software updates. In the meantime, I will not purchase anymore videos.
Thanks.
Powerbook G4 12" 1.33 Ghz 512 K RAM Mac OS X (10.4.3)
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Dartiesdad wrote:
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You can try to disable hardware acceleration in Firefox.
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http://www.pauljohngroup.com/new/group.php
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I would check the Flash/SWF code to see if it requires any special events to be sent.
From: Adobe Forums <[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>
Date: Thu, 26 Jan 2012 22:26:58 -0800
To: Leonard Rosenthol <[email protected]<mailto:[email protected]>>
Subject: animation symbols not running smoothly in interactive pdf
animation symbols not running smoothly in interactive pdf
created by michpan<http://forums.adobe.com/people/michpan> in Acrobat SDK - View the full discussion<http://forums.adobe.com/message/4168230#4168230

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Each time I roll the wheel on my mouse one notch to move the messages up on my screen they move differently than they did before.
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''title edited by a moderator''

Firefox 13.0.1 'autoscroll'
You described the problem very well, and my problem is the same or maybe worse.
When I roll the wheel one notch the vertical scrolling takes off with a mind of its own.
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Browsing
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