This issue developed recently. I can't think of any relevant updates, etc. that could have affected it. I don't FTP regularly so I can't tell exactly when it started.

Zone Alarm is blocking all inbound FTP transfers. I request files FTP through IE, and then they time out as ZA blocks them. I can add the IPs to the trusted zone, but shouldn't they be let through without that?

XP Professional SP1 (2600), ZA 3.7.143, IE 6.0.28