Home-built system: AthlonXP 2100+ Soyo Dragon Ultra motherboard VIA KT333 chipset 1GB PC2700 DDR memory 100 GB Western Digital HD 7200RPM with 8MB cache Nvidia GeForce4 4200Ti video card Win2k Pro No problems running Poser 5 once I applied the SR1 patch (I was getting the forearm bug pretty regularly before the patch.) I wouldn't recommend using the turbo motherboard BIOS setting on the Dragon with P5, though, as this was giving me problems. Stepping it back to the accelerated setting fixed it.