Plenty of video cards/chips are supported by Cyberlink PowerDVD for acceleration, some of them still quite new on the marget (eg. ATI Radeon 7500/8500 and GeForce3 Ti500). Please refer to the Acceleration Support section to see if your card is supported.
Again, PowerDVD's video support is superior to that of WinDVD's, although things such as this can be easily fixed through patches as new cards are releasd. Accleration support is becoming less of an issue as CPUs gets faster and faster (much like decoder efficiency), and since acceleration adds unwanted picture quality loss, most would prefer to have it turned off.
PowerDVD 4.0 does promise support for Dual-View on most of the more popular video cards that supports this feature.
