As any user other than the Admin account, upon clicking the save button on the "account information" page, the screen loads blank, listing /usersettings.php as the page location.
Once again, the Admin account has no problems with this. Btw, I've already tried chmodding usersettings.php, to no avail.

Any help would be appreciated.

Hmm, no idea really ... Are the changes saved? Can you check your logs/error.log file if any errors occur there when a user save the preferences?

Btw, you don't need to chmod any .php files. Chmodding is only necessary for files and directories that Geeklog needs to write to.

bye, Dirk

For an easy temporary fix, I added something like this:

echo "If this doesn't refresh, click [a href="http://*yourpath*/index.php" style="color: *bgcolor*;"]here[/a]";

Just replace *bgcolor* with the background color, and *yourpath* with your site url, [ and ] with the good ol brackets, and when that blank screen comes up, a nice message comes up. if your bgcolor's white, it won't appear, though, considering the blank screen is, you guessed it, white.