Can't open folder

I use Thinkers as a host. If I set up the latest (downloaded tonight) SmartFTP and it brought in my prefs. I had /public-html in the Path area but removed it for testing. Now when I log in, it shows the root folder structure and if i click on public-html, it gives the following in the connection log...

[21:56:50] Detected Server Software: PureFTPd
[21:56:50] PWD
[21:56:50] 257 "/" is your current location
[21:56:51] CWD /public_html
[21:56:51] 250 OK. Current directory is /public_html
[21:56:51] PWD
[21:56:51] 257 "/public_html" is your current location
[21:56:51] TYPE A
[21:56:51] 200 TYPE is now ASCII
[21:56:51] PASV
[21:56:51] 227 Entering Passive Mode (63,249,17,152,253,80)
[21:56:51] Opening data connection to Port: 64848
[21:56:51] MLSD
[21:57:12] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
[21:58:12] Timeout (60s).
[21:58:12] Active Help:
[21:58:12] Client closed the connection.

Running XP Pro as my desktop OS