No HDCP here, it's an ancient 6600GT. PC is Pentium D 3.5ghz, Vista RTM, 1GB. Tried various drivers from 97.46 to today's 100.59.
Quick comparison in Vista btw: PDVD Ultra disables aero, as do all overlay apps. PDVD 6.5 doesn't, you can do a nice 3d flyover even while it's playing - quite impressive btw, it's totally smooth playback even in high action 20mbit AVC scenes.
What we really need is EVR compliance - forget garbage renderers like overlay and the VMRs:-)