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Macbook and magic trackpad stuck and won't unclick

I've been having this perpetual but unreproduceable issue over the last week where my magic trackpad would all of a sudden lock in click mode, making my computer fairly unusable. This would carry through to the trackpad on the macbook.

Yesterday, after googling for an answer (which returned results from swelling batteries to driver suspicions) I decided to just turn bluetooth off. The problem disappeared immediately.

Today, I turned bluetooth back on, and the problem returned. When I went to turn bluetooth off again, I noticed that not only was the magic trackpad connected, but a mouse was also connected!

After some searching, I found the culprit. My magic mouse was in my bag, turned on, button depressed. As soon as I turned it off, the problem was fixed. The irregular appearance of the problem was simply caused by me moving my bag around the room.

So, if you're having this problem, first check to make sure you don't have a connected mouse hidden somewhere before you start thinking about chucking that Mac!

FCP Trick: How to delete all transitions in a sequence

If you have to remove a ton of cross dissolves, cross fades, etc, from a Final Cut Pro sequence, do the following:

Open the sequence, hit Command-F, type the name of the transition, and click "Find All". This will select everything in your sequence that meets the criteria. Then simply hit delete on the keyboard to get rid of them. Magic!

Example: search for "Cross" to get rid of cross dissolves and cross fades all at once. Of course, if you've got clips with "cross" in the title, think before you delete.

This trick comes in handy when preparing video for export to another application, or in my case, to fix other people's work.

After a fruitless google search, I found this in Diana Weynand's book "Final Cut Pro 7", part of the Apple Pro Training series (highly recommended).