Build 973 - Passive Problems

Under Build 971 I had no problems using SmartFTP via AnalogX (Proxy) . However, having just updated to Build 973, I can no longer connect to a couple of sites. I have a PC connected to the Internet via normal 56k connection which runs analogX. This proxies for my home network.

When I connect to certain Sites it gets as far as sending PASV and then nothing else happens! How do I make build 973 behave like build 971?

Any help/advice would be greatly appreciated.

Just solved my own problem, the latest install of SmartFTP defaults to passive mode, which does not work via AnalogX Proxy! Changing the setting back to Default Active Port solves the problem.