Internet solutions

1) Even using “Advanced Search”
2) Even using Date of “Any”
3) Even using Date of “Prior to” [today's date]
4) Even using Date of “After” [date more than 6 months ago]
5) AFAICT it does this regardless of attachments or read/unread

[This is "standard" Yahoo mail, not mail beta.]

I am using Windows XP (SP 2) with both major browsers:

Firefox 2.0.0.13
AND
Internet Explorer 6.0.2900.2180 [not IE 7]

P.S. I emailed customer care, and used feedback/suggestions to notify Yahoo “directly.”
That is disheartening, I have had Yahoo for 10 years. I wonder if premium Yahoo mail allows full searches.
There are 3 things annoying about this:
1) Unannounced
2) They provide Advanced Search functions that don’t work, either, which is even more deceptive
3) They went to unlimited storage. What’s the point if I can’t find anything older than a few months?
I save all kinds of things, important sites, username and accounts, friends’ RL addresses, receipts, and so forth. Now I can’t find some of those at all.
It is no longer doing this. I don’t want to see the problem has been fixed, because I don’t know that. It may be intermittent.
Also I have received no responses to my 4-5 contacts with Yahoo! it has been a few days, and there has been only one automated acknowledgment, and none of the usual form responses.