PowerPC Interrupt Extension -- If you've been seeing inexplicable hangs or momentary freezes on your Power Mac, Apple might have an answer for you in the new PowerPC Interrupt Extension. Drop this in your System Folder, and it fixes one known cause of "long interrupt latencies" - basically, where the computer sits around waiting for something more important to happen. It's difficult to say what specific problems this extension will fix since so many programs can be affected, but reports indicate the extensions fixes formerly-reproducible problems with some games, telecommunications software (including PPP), and audio/video editing tools. This extension requires a Power Macintosh and System 7.5.5. [GD]
Extract Directly from Time Machine
Normally you use Time Machine to restore lost data in a file like this: within the Time Machine interface, you go back to the time the file was not yet messed up, and you restore it to replace the file you have now.
You can also elect to keep both, but the restored file takes the name and place of the current one. So, if you have made changes since the backup took place that you would like to keep, they are lost, or you have to mess around a bit to merge changes, rename files, and trash the unwanted one.
As an alternative, you can browse the Time Machine backup volume directly in the Finder like any normal disk, navigate through the chronological backup hierarchy, and find the file which contains the lost content.
Once you've found it, you can open it and the current version of the file side-by-side, and copy information from Time Machine's version of the file into the current one, without losing any content you put in it since the backup was made.