I've read through the various threads on the forum regarding jerky playback and so far nothing suggested has helped me. I'm running Win XP Pro on a Dell P4 @ 2 gig with 2 gigabytes of Ram, a trio of Cheetahs. Here's an IRQ summary:
IRQ Usage Summary:



Resource Summary Report - Page: 2

(ISA) 0 System timer
(ISA) 1 Dell Enhanced QuietKey PS2 with DellTouch
(ISA) 3 Communications Port (COM2)
(ISA) 4 Communications Port (COM1)
(ISA) 6 Standard floppy disk controller
(ISA) 8 System CMOS/real time clock
(ISA) 9 Microsoft ACPI-Compliant System
(PCI) 10 Intel(R) 82801BA/BAM SMBus Controller - 2443
(ISA) 13 Numeric data processor
(ISA) 15 Secondary IDE Channel
(PCI) 16 NVIDIA Quadro2 Pro
(PCI) 16 Adaptec SCSI Card 29160N - Ultra160 SCSI
(PCI) 17 Creative SB Live! Value (WDM)
(PCI) 18 Texas Instruments OHCI Compliant IEEE 1394 Host Controller
(PCI) 18 3Com 3C920 Integrated Fast Ethernet Controller (3C905C-TX Compat
(PCI) 19 NVIDIA GeForce2 MX/MX 400
(PCI) 19 Intel(r) 82801BA/BAM USB Universal Host Controller - 2442
(PCI) 23 Intel(r) 82801BA/BAM USB Universal Host Controller - 2444

I think that's everything people might need to give me a guess. It was sometimes jerky in VV3 but not like it is in VV4.

pc