Issue with deleting spam

I am the administrator of the Zoho VO system I have set up, and I have set up several different e-mail accounts under my username (to check for e-mails that come in via several different e-mail addresses that I have). These are listed, as one would expect, down the left-hand side of the screen when I click the "E-mail" tab.

When I have spam e-mails, a bold number shows in brackets next to "spam", for each of the accounts in the list. However, when I click "Empty spam" to get rid of the spam e-mails, I seem to lose any other spam e-mails that are in the spam folders of my other accounts. When these are further down in the list of e-mail accounts that I haven't looked at yet, I might be losing e-mails that aren't in fact spam at all and are in the spam folders by accident.

This only seems to have started happening since upgrading to Service Pack 2 (that is, your VO Service Pack 2, not Windows XP Service Pack 2!). Before that, if I clicked "empty spam" it only emptied those e-mails in the spam folder of the account I was busy looking at - other spam folders of my other e-mail accounts were left full until I manually emptied each one.

My question is, should this be happening or does it sound like a bug?

Thanks - if the above doesn't make sense, ask me and I'll try to explain it in a different way!