Vdub capturing with ATI Radeon AIW

[greggk]

I have been having a problem capturing with vdub. I'm getting a lot of dropped frames, and I really shouldn't be. I have two systems, one thats a PIII 600 running windows 2000, and that captures fine, but the other one is an AMD 1.2mhz Thunderbird, with an ATA100. When I try to capture with the 1.2 mhz computer, with the same Vdub settings, I get tons of dropped frames. The 1.2 is running windows ME. I notice that it's not taking a lot of cpu cycles to capture, around 20% or so, but it's dropping frames like crazy. I'm capturing from a satellite feed. One thing I noticed, eventhough I have the frame rate set at 29.97, it's going up to like 33 to 34 frames per second at times. Someone please advice.
Thanks.

[greggk]

Oh, one more thing, I'm using the PicVideo codec for capturing, setting at 18.