ScottyZ
I seem to have the same problem.
Sloth, I have a bizzare and unexplainable urge to recommend that you execute the latest version of upgrade.php.
ScottyZ
Database Error
Can't open file: 'smf_instant_messages.MYI' (errno: 145)
File: /home/pokerfor/public_html/forum/Sources/InstantMessage.php
Line: 174
Note: It appears that your database may require an upgrade. Your forum files are currently at version SMF 1.0.5, whereas your database is at version SMF 1.0.2. It is recommended that you execute the latest version of upgrade.php.