Rockstar Games have released a patch for the PlayStation 3 version of GTA IV. The patch will fix the freezing issues reported by gamers since the game’s release last week. The 18MB update will "prevent GameSpy’s servers from being overloaded," making the online component of the game more stable. In turn should reduce “the impact on those servers that were causing the game to stutter and lock up.”
The update will hopefully fix all the freezing issues reported by gamers. This will mean that you no longer have to disconnect from the PSN in order to play the game.
"Rockstar Games has released a GTA IV patch for Playstation 3 today that prevents Gamespy’s servers from being overloaded and therefore reduces the impact on those servers that were causing the game to stutter and lock up. We continue to monitor the performance of the game both on and offline and will provide further updates as necessary. We want to assure everyone that, together with our hardware partners, we continue to strive to give our fans the best possible interactive entertainment experiences possible. This update will ensure that everyone will experience Grand Theft Auto IV the way it was intended. We apologize for the inconvenience this has caused."