Apple has released updates for iMovie and GarageBand. You can obtain both via the Software Updates component of Mac OS X’s Systems Preferences app.
iMovie 9.0.1 — a 27.52MB download — improves stability and fixes other minor issues, including:
° Fixes an issue where stabilization would not be applied correctly to some video clips from iPhone and iPod touch;
° Fixes an issue that prevented use of some valid Facebook passwords that contained non-alphanumeric characters;
° Improves compatibility with some cameras that create content in multiple formats;
° Improves performance when scrolling the Project Library.
GarageBand 6.0.1 — a 47.5MB download — improves overall stability, and addresses compatibility and a number of other minor issues, including:
° Fixes an issue related to undoing Flex Time edits;
° Removes occasional latency that can occur on guitar tracks;
° Restores the ability to use the Quantize Note Timing menu for tracks with Groove Matching.