Can get mail but I can't send any - the window is jammed?

Clear your browsers cashe.

In Internet Explorer, click the Tools button, and then click Internet Options.

On the General tab, under Browsing history, click Delete.

Click Delete files, and then click Yes.

Click Close, and then click OK.

OR

Yahoo Mail %26gt; Options %26gt; General Preferances %26gt; Composing E-mails %26gt; Mode: %26gt; Compose

messages as plain text %26gt; SAVE