WinDV dropping frames and picture glitching?

[syn_n3tworks]

I'm quite new to this archiving business, so I got myself a Windows XP computer to transfer my miniDV tapes using WinDV, and for quite some time it worked correctly. Until some days ago I decided to try to "capture" the picture coming from my camcorder, through firewire straight to my PC. It worked correctly, but when I tried to do it again, my PC bluescreened (0xF4), and it kept doing that every time I pressed the capture button (picture freezes, the buffer goes all the way up to 100, and then crashes the PC). After I got that sorted out (not sure how), it didn't bluescreened anymore, but instead, it would start to drop a lot of frames and show artifacts and glitches on the picture, sometimes even freezing and/or crashing. My guess is that it's something hardware related, but if someone knows something else, please let me know. I'll attach some examples of what I'm talking about.
EDIT: Forgot to mention, the camcorder works fine, and the tapes are also fine.

[msgohan]

For troubleshooting, eliminate the tape variable: set the camcorder to Camera mode and capture the live feed with WinDV.

I agree that it sounds like the PC hardware is screwed. Luckily Firewire cards are cheap, if that's the problem.

[syn_n3tworks]

I've already tried that, but the same thing happens: glitches, dropped frames, freezing, crashing. My PC has two firewire ports, tried in both of them, same problem.

[hodgey]

Is it a fresh/clean win XP install? If it's an original XP install from 20 years ago and has had a ton of different stuff installed there could be programs/drivers/etc causing issues.

[syn_n3tworks]

Yeah, it's an old XP machine. But I find hard to believe that it's a software issue, because I don't recall installing anything new after downloading WinDV, and I've made with it transfers without any problems. Everything started after I captured the live video coming from my camcorder straight to the PC. Besides, regarding the glitches and dropped frames, sometimes it drops a few frames, sometimes a lot, sometimes the PC doesn't even detect my camcorder. That's why I think it's a hardware problem. I just don't know what is it exactly.

[syn_n3tworks]

Quick update: changing the CMOS battery seems to have solved my problem, somehow, and now I'm finally able to transfer without dropped frames.

[lollo2]

In addition, you can run AVPS DV Analyzer on the captured stream to validate that there are no errors. (Sometimes I have few frames with DV concealment, because tapes shelf life is not that good)