Today I installed the wppa plugin into my WP website, and began uploading pictures. I successfully uploaded 2 sets of 15 pictures each, where each jpg was about 50KB. The photo album worked fine in my website. I then uploaded a third group (16 similar pictures this time). This upload hung up and then crashed my WP database, such that when I pointed a web browser to my site, the site's wp-admin/install.php web page displayed (as though WP was not installed yet, at all). This is running latest versions of WP and the wppa plugin.
I believe I know what happened. After recovering the database, it appears that the upload process failed while uploading, and immediately after storing, a jpg whose name contained four consecutive periods ("Ron McGee. What....I won.jpg" to be precise).
As Joe Pesci might say, does this theory hold water?