Hello all - longtime reader, first-time poster Hoping somebody can help me out here. I have a Sawtooth G4 that is currently equipped with the following: 1.2GHz CPU (Sonnet upgrade) 2GB RAM 80GB 7200rpm HDD (IDE) USB 2.0 PCI card ATI Rage 128 Pro My plans for this machine are to add a few more TB's of storage via a PCI SATA card and use it primarily as an iTunes/media server. I would, however, like to also be able to use it occasionally to watch SD movies, burn DVDs, and do some light photo editing and web browsing. I have recently performed a clean install of Leopard 10.5.8 after having run Panther 10.3.9 and OS 9.2 in the past without issues. Since installing Leopard, all function related to video have become unbearably slow and/or unuseable - iTunes/Quicktime videos lag and are extremely choppy; the OS X DVD Player app will not function at all (I get an error message saying "Valid Video Device Not Found 70017"); and any animation within OS X (bouncing dock icons, minimize/genie effect, etc.) is jerky and slow. Which leads to my first question - I'm thinking that the problem may lie with the OEM Rage 128 video card. Does this sound plausible, or am I barking up the wrong tree? The CPU and RAM obviously exceed Apple's minimum requirements to run Leopard, so I don't think that's the issue. Secondly, assuming I do need to upgrade the video card, would an ATI Radeon 7500 offer any significant improvement? After looking around online at my options, it looks like I can still buy a new Radeon 7500 from OWC for a cheap price. I'm not interested in flashed PC cards, nor do I want to spend a ton of money on this computer considering what it will be used for. It seems that most recommend the Radeon 9800, but I'm concerned that the stock PSU won't be able to handle it alongside the other upgrades already installed. Therefore I'm hoping that the 7500 will be "good enough" for what I need. Any help or advice is greatly appreciated. Thanks in advance!