Hi, can anyone help me with this one please?

Since upgrading to BM3.7 from 3.5 whenever i attempt to access an ftp
in internet explorer, i now get the message "the folder
is read-only because the proxy server is not set up to allow full
access...to move paste files etc you must use a different proxy."

I've had a look through the settings and cant see anything, and this behaviour has only occured since the upgrade.

Any help much appreciated.