I have been running SME 5.5 (and more than a few versions prior) on a 233mhz pentium I box in my living room with few difficulties and impressive uptime, but the box itself is a wind tunnel (so many fans, so little speed) -- so I decided to migrate to a newer (and much quieter) 450mhz pentium II with 320mb of memory.
Long story short, after setting up the new box just like the old one (including two users, which is all we have in the household) I scp'd the user's home and mail directories from the old box to the new one.
The new box is now online, and all is well, except for one thing: whereas one user (my wife) uses POP3, so all of her old emails are not stored on the server, I use IMAP -- and my old storage folders and whatnot have been transferred to the new server, but my IMAP clients (and IMP) don't recognize them.
Any ideas or suggestions?