This problem was fixed by increasing the memory allocation for PHP from 32 to 48 MB. Interesting how the preferences page was locked by the process as well...it freed up immediately after the allocation was bumped.

************************Thanks********************************

I have a XOOPS 2.0.16 install and just encountered a problem with mailing to our membership...it's about 1800 emails, which has worked fine in the past. Webmasters get their mail just fine, but when I mail to registered users it simply goes to blank screen in Firefox or a Page not Found in IE.

But that's only half of my problem...When I went to check my mail preferences as part of the system preferences, the page won't come up...all other preference pages do appear.

Mail preferences appear to be listed in the xoops_config database, but no page appears. What objects do I need to reload to make the mail preferences page re-appear?

Thanks for any assistance!