YouTube upload issues

[Big D]

I'm trying to upload a short vid to YouTube, and I've tried numerous times since last night - but it just won't go through. It uploads anywhere between 0 and 5% of the the clip, then just stays there, even though it says it's still loading.

The video format and filesize are fine, and my firewall (ZoneAlarm) isn't saying there's anything wrong.

Any ideas on what's wrong, and how to get around it?

[Serapy]

disable your zonealarm and try again.
if that doesnt work, try a different browser?

[Big D]

Good advice, thank you. Turning off the firewall didn't help, but IE worked fine.
It's quite strange, though - I uploaded my previous videos using Firefox, and I don't think it's updated since then. It must've done, though, as I don't see any other reason why it wouldn't work anymore.

[Serapy]

Yeah, it happened the same to me a while ago but I can't remember how I got rid of it, lol. Re-install Firefox, I guess.