Hoary and Fastmail

[toyfactory]

Does anyone here use Fastmail's webmail interface?

In Warty's Firefox (and in MSIE) I could hover the mouse over the
subject line of an email and the full subject line would appear below
the cursor a moment later.  Now (in Hoary's Firefox 1.0.2) only the text
"Click to read message" followed by a big blank appears. This is a pain
because often the full subject line is too long to display on the
mailbox screen.

Anyone else seen this problem?

Nick