lost imap folders, cannot recreate account

Rebooted system and noticed that whenever I sent an email from imap it would never save into the imap sent folder - had to manually move it. Error message was something about imap i/o error.
Attempted to change the impap account settings to specify the sent folder on the imap server.. Once I made the change, the account disappeared from the main UI (couldn't access any the account folders / messages) yet the account settings were still visible. Rebooted system - same issue. checked the disk - no problems. ran evolution from terminal with the following:

(evolution:2437): camel-WARNING **: something went wrong terribly during db creation
(evolution:2437): evolution-mail-WARNING **: Couldn't get service: imap://xxx%<email address hidden>/;use_ssl=always;filter;use_lsub;command=ssh%20-C%20-l%20%25u%20%25h%20exec%20/usr/sbin/imapd;check_lsub: database disk image is malformed

(evolution:2437): camel-WARNING **: something went wrong terribly during db creation
(evolution:2437): GLib-GObject-CRITICAL **: Object class EMFolderTree doesn't implement property 'paste-target-list' from interface 'ESelectable'
(evolution:2437): GLib-GObject-CRITICAL **: Object class EMFolderTree doesn't implement property 'copy-target-list' from interface 'ESelectable'
Created new window in existing browser session.

(evolution:2437): camel-WARNING **: something went wrong terribly during db creation
evolution-mail-Message: Error occurred while existing dialogue active:
database disk image is malformed
Created new window in existing browser session.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: evolution 2.32.2-0ubuntu7
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic i686
Architecture: i386
Date: Thu Jul 28 01:12:45 2011
ExecutablePath: /usr/bin/evolution
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Release Candidate i386 (20100419.1)
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_US.UTF-8
 LANGUAGE=en_US:en
SourcePackage: evolution
UpgradeStatus: Upgraded to natty on 2011-04-29 (89 days ago)
XsessionErrors:
 (gdu-notification-daemon:1644): libgdu-WARNING **: Partition /org/freedesktop/UDisks/devices/sda5 is a logical partition but no extended partition exists
 (update-notifier:1964): libgdu-WARNING **: Partition /org/freedesktop/UDisks/devices/sda5 is a logical partition but no extended partition exists