Apple has released Final Cut Pro X 10.0.7 with a small grab bag of fixes to improve stability and performance. Amongst the tweaks, the update restores the Letterbox effect “Offset” slider, fixes a problem with uploading clips to Vimeo larger than 1 GB in size, and fixes an issue in which an incorrect frame size is used with filters on two adjacent clips with different pixel aspect ratio. It also deals with an issue where some third-party effects caused the app to stop responding during background rendering and another where third-party transitions incorrectly used black instead of source media. ($299.99 new in the Mac App Store, free update, 1.53 GB, release notes)
Syslogd Overwhelming Your Computer?
If your Leopard (Mac OS X 10.5) system is unexpectedly sluggish, logging might be the culprit. Run Activity Monitor (Applications/Utilities/ folder), and click the CPU column twice to get it to show most to least activity. If syslogd is at the top of the list, there's a fix. Syslogd tracks informational messages produced by software and writes them to the asl.db, a file in your Unix /var/log/ directory. It's a known problem that syslogd can run amok. There's a fix: deleting the asl.db file.
Launch Terminal (from the same Utilities folder), and enter these commands exactly as written, entering your administrative password when prompted:
sudo launchctl stop com.apple.syslogd
sudo rm /var/log/asl.db
sudo launchctl start com.apple.syslogd
Your system should settle down to normal. For more information, follow the link.