I bought this card off these very forums but i'm getting jerky playback with v3.03 software, a P4 1.8A Ghz c/w 256 MB memory, XP Pro on a gigabyte 8IRXP motherboard. I've got TT autokiller, DVDregion killer, Girder and VNC running in the taskbar. I emailed Nebula but they said that in v3.03 playback was improved even with the ACPI driver installed. After watching TV on a Nokia 221T STB the picture is unwatchable. I enabled the 'frame smoothing' option in the advanced tab but it made no difference. Any ideas, is my processor in need of an upgrade? Any help appreciated. Steve.