I have a problem, and my Beautiful Wife has the same, in that in our separate email accounts we find downloaded emails disappearing. Not all the time, but occasionally for each of us.

We're on XP Pro, on DSL, connecting to Yahoo! as our ISP. We use SeaMonkey normally to access the web, and occasionally FireFox when a website wants a more modern set of capabilities than SeaMonkey can supply. Actually, my BW uses SeaMonkey exclusively.

Emails are not read directly on the ISP, but downloaded to our hard disk for handling.

When I first noticed a missing email, I initially thought it had been misclassified by Yahoo's antispam program. No, the missing message was not to be found in the JUNK subdirectory.

Nor is the answer a mere mistaken deletion of a message. The missing email is in these cases not in TRASH either. Nor in SENT, UNSENT, DRAFTS, or STORAGE.

It's not a problem of "Oh, I thought there was an email" when there really wasn't. The other day I was relieved to find I had a hard-copy printout of the current missing message (along with my memory of the message), which saved my bacon.

Oh, for whatever it may be worth, we run an up-to-date version of Norton Internet Security.

Does anyone have any ideas?