I have tried the latest limewire on a Mac running Jaguar, which has an Nvidia agp card and an ATI pci card, with identical monitors attached to both. The Nvidia card allows Limewire to run at the speed that was normal before 2.6.5, but if any or all of the Limewire window is on the ATI card, the entire system slows to a crawl. It appears that there is an incompatability with the ATI card. Anyone else had this kind of result?