I love this hint. Just so you know, if you have Fast User Switching turned on, you only have to go to the login window to see the change (logging out is not necessary unless you want to see it in the Fast User Switching menu in the menubar).

[ Reply to This | # ]

It works, but messes up your Address Book picture.

[ Reply to This | # ]

Yeah, apparently Address Book refuses to store its images as TIFFs, and it seems to rely on the JPEGPhoto key value in the dscl database for keeping its copy of the "My Card" image up to date.

I even went back and used Address Book's interface to reselect the correct image, using the "Choose…" button in the picture editor that comes up when you double-click the thumbnail on a contact, and selected the actual TIFF that I assigned to my user with the given dscl commands, and that caused the JPEGPhoto key to be repopulated in the dscl database, and the system then proceeds to ignore my finely crafted TIFF once again… I guess we can't have it both ways!

[ Reply to This | # ]

Okay, I may have found at least one way to work around this, but it requires a MobileMe account.

Don't ask me why, but it occurred to me that the MobileMe Contacts web application might do a better job with the file formats that include transparency info, so I checked it out and sure enough, one of the options it accepts for upload-able Contact's image files is PNG. So, I saved my TIFF as a PNG, preserving the Alpha channel, and uploaded that. After the next MobileMe sync on my computer, my image for my "My Card" in Address Book now displays with transparency, and, more importantly, so does my user icon in the login panel and Fast User Switching menu!!!

Unfortunately, MobileMe web apps are really acting up tonight (anybody else noticing that?) so I can't check it out more rigorously right now, but I thought I ought to get a correction up here with as much as I know for now… maybe this could have been accomplished without using MobileMe, simply by importing the PNG version directly into Address Book on my computer (though I did try that using the TIFF with no success, so I'm a little skeptical of the chances…)

[ Reply to This | # ]