John Weis, Software Test Engineer for MSN Messenger, posted an update to the now official 7.5.0322 version.
Build 324 only includes a one-line fix, but if you’re still having problems with 322 you’re advised to try this one.
Important Note: If your 322 is working fine, you don’t have to upgrade.

[ Download MSN Messenger 7.5.0324 (unofficial, English-only build) ]

9 February 2006 Update: 7.5.0.324 is now OFFICIAL! Download the OFFICIAL MSN Messenger 7.5.0.324 at this link.