I have not had this problem with any version of Outlook.
I currently run 27 separate domain email addresses from one Application of Outlook and I have never seen this problem.
Are you sure it is not server related? Just because it baulks your password "occasionally and randomly" doesn't mean to say that it is Outlook doing this, it could equally be the server.
Our mail servers require an extra level of authentication to log in too, as well as being signed by Comodo signatures, so I would have thought that if anything was flakey about Outlook it would have shown up on my main PC, but to date, nothing.
Edit to add
Although having said that, it did have that problem once, with all the accounts, but I hadn't set them up correctly. As soon as I went into the "advanced" settings and did it properly it went away and has never returned, just thinking out loud here, so yes I did have it when I first set it up, but that was my fault, since the settings have been correct I have not had this problem! Nor have any of my clients come to think of it, otherwise some of them would have been on the phone at a drop of a hat, we have a freephone support number for our clients, worst move we ever made, slightest hickup and they are on the phone, but we can't take it away now!
Regards,
Trevor
2 x F2S 8mb lines, current speeds a rock solid 6.4mbps on each one.(hiding behind DG834PN & DGN2000 routers) on: a Win7 32 (RC1) Laptop, Win7 64 (RC1) ) PC & WinVista Ultimate Laptop.
Edited by TrevorSP (Thu 18-Jun-09 11:46:09)