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I didn't see anyone suggest removing all the fonts that were previously loaded before doing all these UNIX repairs and then reloading the fonts into Suitcase afterwards. The fonts should now be previewable.Hope this works for you.
I needed to empty out all my imported fonts (step 3) so that I could reload them here.
Once permissions and caches are fixed, restart your Mac. This demo will not launch a fourth time unless you pay and register, but if you can get it to work once, the option to buy will be up to you. I used Cocktail, a shareware utility available at for $10. Cleaning caches can be done in Terminal using instructions as posted on. You can repair permissions using the Disk Utility program in your Utilities folder inside your Applications folder. Please note that cleaning the caches may initially bog down the system as it creates new cache files, but this will fix itself quickly. You must now repair permissions and clean out all the caches. Go to your user folder, into the Library folder and then the Preferences folder and delete the Preferences file for Suitcase (it should be called ). In Suitcase Preferences, turn off the option to Open Suitcase automatically when you login by unchecking the box under Applications Options. In other words, no outside fonts should be loaded into Suitcase except for (of course) your System fonts. The window with the font lists at the bottom left with the Suitcase Fonts drop down menu when selected should be empty. Quit everything in OS X except the Finder. So I experimented a bit and found a solution that at least worked for me. The closest to a real solution was the hint found on that suggests repairing permissions and then cleaning all the caches and restarting. There have been a lot of hints, none of which worked. Apparently this is a common problem and I've been scouring the web trying to get an answer. #More fonts in preview mac os mac os x#
I've been frustrated trying to get my fonts to preview in Extensis Suitcase X1 after installing Mac OS X Panther.