I fixed my firewall problem by opening traffic from the server to the Internet with port 443.

Probably you are having problems after this commit
http://trac.roundcube.net/trac.cgi/changeset/265

Spell check not working even with firewall turned off

Nope. That isn't any problem normally.

__________________
New VPS for just 9,99!
Flosoft.biz

Unless you have an installation like mine where each server has its own firewall enabled and only the ports used for incoming/outgoing traffic enable, everything else just drop it. In that case, need to open outside traffic in port 443.

Do you keep patching a previous copy of roundcube, or test a clean svn downloaded copy?

Try changing the google link to the way it was before Build 265, port 80 instead of 443, and give it a try.

Clean version.

__________________
New VPS for just 9,99!
Flosoft.biz