It doesn't matter if you use Vegas, Pinnacle, Windows MovieMaker or WinDV to capture your video -- as long as your AVDC is capturing your video over a FireWire connection as DV-AVIs your video will work perfectly in Premiere Elements.
However, most capture programs (Premiere Elements included) have features for breaking scenes based on timecode and for stopping capture if frames are dropped. These features are terribly confused by AVDC captures because they include no timecode.
All you've got to do is go into the capture utility's Device Manager and turn off the option to stop capture on dropped frames and you'll be fine.
XP and Windows 7 (at least the 32-bit version) should both work great with Premiere Elements 9, as long as you keep your OS and Quicktime tuned and up to date, you keep your drives clear of tmp files and spyware and you ensure that you've optimized the operating system so that you haven't got over 50 or so processes running in the background.
Welcome to the forum.
PrE does not use CUDA, like PrPro CS5 does. Other than a few GPU Effects & Transitions, PrE only uses the GPU for playback, and not for any processing. Also note, even with CS5 and its MPE (Mercury Playback Engine), acceleration of some aspects of the program will be enhanced by CUDA and Hardware MPE, and only with approved nVidia cards. ATI/AMD cards do not support CUDA, so they will not provide additional benefit. They use OpenCL instead, and the additional power of those cards, will not be tapped by CS5. Playback is enhanced by CUDA/MPE, and only some processing, like MPEG Export, rely on CUDA for enhanced processing. For a complete rundown of CUDA/MPE, take a look at this ARTICLE.
What is probably happening is that you have broken TimeCode, probably caused by doing some Rewind and Play, or the tape, and when it's reset, there isa gap in that TimeCode, by even a few "frames."
In Edit>Preferences>Capture, you can set how PrE handles "Dropped Frames," and also whether "Device Control TimeCode" is used. I assume that you have explored these settings, and they do not get you past the broken TimeCode. Is that correct?
What is the make/model of the camera that you have hooked to the Canopus?
You might find that you have much more control and can get the Capture done, as you wish, with a a Capture utility, like ScenAlyzer Live. Many feel that it, and also the free utility, HDVSplit, are the Capture utilities, that Adobe should have gone with, as they both offer more controls. I use ScenAlyzer Live with my Canopus, but am Capturing form a VHS deck in most cases. There is also a free version of ScenAlyzer, with fewer features.
PRE does that - use WinDV or Exsate DV Capture Live to capture from your ADVC. Note that WinDV automatically captures in DV-AVI Type 2, Exsate has several options so ensure that you capture in DV-AVI Type 2. Be aware that WinDV does not preview the audio during capture, Exsate does but has a small non-resizable window.
Insanity is hereditary, you get it from your children
Everybody - Thanks very much for your input! This is the first time I have
ever posted to a forum in 16 years on the net and I'm blown away by the
response. I am a real newbie at video, thinking my audio skills would be
transferable - by and large they're not!
Thanks once again everyone who has mailed me