MS Proxy, SOCKS4A, remote DNS

Build: 1.0.979, ID: 400002650

Not entirely sure whether this is a SmartFTP problem or an MS Proxy (2) issue.

I've set up SmartFTP to use SOCKS4A with remote DNS to penetrate our Proxy. I'm getting the following sequence:

Resolving host name 192.168.x.y...
Resolving host name ftp.members.lycos.co.uk...
Connecting to Proxy (192.168.x.y) -> IP: 192.168.x.y PORT: 1080
Connected to Proxy (192.168.x.y) -> Time = 0ms
SOCKS4: permission denied.

The proxy currently has very soft permissions and "everyone" has full rights.

Questions:
1) Is it relevant that the error shows SOCKS4 and not SOCKS4A? (I don't expect SOCKS4 to work)
2) To what has permission been denied?
3) Is there an option to create a detailed SmartFTP log?


The following may cloud the issue(!):

When I connect with the same settings using Ace3free I get:
Connecting to ftp.members.lycos.co.uk on port 21. Attempt 1 of 3...
Connecting to SOCKS 4A firewall at 192.168.x.y on port 1080...
Successfully connected and logged into firewall
220 ftp-uk.tmm.lyceu.net FTP server ready
USER anonymous
331 Password required for anonymous.
PASS *****
530 Login incorrect.
USER GoodLycosUser
331 Password required for GoodLycosUser.
PASS *****
230 Welcome to Tripod UK.

...In other words, a successful connection but something iffy in the middle.

Any help to resolve this would be much appreciated.

Regards,
David