Patch 1.01 will launch automatically if you're playing the game through Steam, but it can also be downloaded from Bioware's offical site.
The patch fixes the following issues:
* Fixed save game issues on single core machines
* Fixed game asking for non-existent drives
* Fixed release control issues where some players were unable to unlock correctly
* Fixed a Steam-specific issue related to VO not playing after switching languages
You can download the patch here