I've run into a weird problem, where some of the users of my weblog get blank post.php pages in certain situations, and only since I installed PowerPress. The only one that I've been able to reproduce is when I add an URL to an mp3 in the PowerPress field as one of my users; this gives a blank post.php. It works when I'm logged in as myself, however, suggesting that this might have something to do with user rights.
I've recently made a very considerable move from FeedBurner with nearly ten podcasts to a self-hosted option with PowerPress and I would hate to have to stop using PowerPress as I've been very impressed with it so far. What do you think might be causing this?