Outlook won’t stay open – Commiting transaction failed

I belive this is due to a corrupt or bad 'com.microsoft.Outlook.plist' file... if I remove it things seem ok but I loose all of the 'on my computer' folders... Whats the best thing to do here?

[0x0-0x173173].com.microsoft.outlook.databasedaemon[21666]    Error: Commiting transaction failed due to error trying to delete a non-existent block in a transaction(cttA:663228)