OS 10.3.6 on a Dual 500MHz PowerPC G4 with 512MB SDRAM
testing v3.3 g21 without a dongle
AGP Radeon8500 64M running 2 monitors all updated rom and drivers v4.4.2
Basically everything is up to date with Software Update.

However, its been opn for about 20 hours now, doing some test stuff with presets running and it hasn't crashed yet - only seems to be just after startup at the moment