missing graphics in firefox

[Peter]

Hi gang,

I'm running 5.5-PRERELEASE and I'm observing odd behaviour with Firefox
(1.5.0.4).  In my webmail (yahoo) interface I am missing various
graphics:

- paperclip (denoting attachments)
- arrows (signifying that I replied to the message)
- card (signifying that this person is in my address book)
- little drop-down arrows beside buttons (MARK, MOVE, REPLY)

I do not notice any omitted graphics on any other site.

What can be the cause of this?  Can anyone help?

Peter

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