Unstable handshake process.

Communication with AIM/ AOL users does not always work properly.

Connection settings may not be saved properly.

Address book and profile details do not always upload to servers.

The Search Control option (Settings menu -> Options-> Security) does not work. Users will be able to find you.

Search results may be different from chosen criteria.

Offline messages from a certain contact are deleted from the secretary, when an online message is sent from the same contact.

When typing more characters than the limit allows, in a reply to an IM sent to Email, no warning is displayed and the rest of the message will not reach the recipient.