I'm not really sure how the design could possibly affect how FCP sees the file ... weirdest thing.
I do know, however, that PNG files do not support alpha channel. I noticed in your video that you went through the "Save for web" option in Photoshop ... if you simply choose "Save as", then PNG from the dropdown menu, you'll notice that that you can't check "Alpha Channel" in the save dialog - it's greyed out.
IMHO it would be much better to use a TIFF or, if you need to animate layers, a PSD file.
hope this helps
Thank you for your advice. I have no experience using TIFF or even alpha channels when exporting an image. I understand how they work though, so I'll try that.
I have fiddled with that regular save as well, and it seemed to make a difference but then again it would still not be recognized as a transparent PNG either way. It may be a bug in my setup, I don't know.
Usually, if I want to animate something I use motion and that seems to take care of alpha channels on export. But of course, it would be a lot faster to do it right there in FCP, so thank you for again, I'll try using TIFF exports.
I tend to agree with you, I must be doing something wrong or something must be wrong with my particular setup as it is right now because I've never bumped into this kind of issue before and I've been using PNGs for lower thirds for a long time.
Will finally upgrade to Snow Leopard one of these days (got the disc but not the time) and check if after a clean install it will do the same.
It's a simple solution if you would like to use PNG's as they DO carry an alpha channel. Find your PNG over in your FCP Project bin. Right click > Item Properties. Most likely your Alpha Channel is set to Ignore/None. Control Click on it to change it to Straight. Drag your PNG back to the timeline and you should have your Alpha Channel.