I'm still adjusting to KDE 4.1 myself. Not having any performance or hardware problems though. The installer is absolutely the BEST of any distro. Heck, I'd even say the installer is the best of any OS, Windows, *nix or otherwise. The 3D desktop runs fine on my nVidia 7600. And including VirtualBox OSE in the repositories made setting up a VM server way too easy. I've got Vista running inside Mandriva right now, as a matter of fact. ;) Couldn't get Windows Server 2008 Hyper-V running on any of my AMD boxes and VMWare thinks it's their job to sell SCSI hardware.