I am wondering if this has to do with MySQL version. On this host I'm using it is MySQL 4.0.18 and I have Drupal 4.7 installed using the database.4.0.mysql tables and all is well. Drupal runs core just fine. However, when I install "some" contributed modules, after checking off Enabled and click Save Configuration, the screen returns a blank screen instead of the customary confirmation and redraw of the modules page. The modules are from the 4.7 listing of modules. The interesting thing is, when I return to the modules Enable page (via url or however), the page appears fine and the respective module just enabled does indeed indicate it has been enabled and indeed the module "seems" to work just fine; admin > Settings exist if it requires settings, the expected activity within the site appears to work okay, and so forth.
So I was curious if anyone has encountered this and that it might have to do with my using MySQL 4.0.18 instead of MySQL 4.1.xx because on my MySQL 4.1.xx host, I do not experience this behavior.
This "Save configuration > blank screen" business does not happen with all 4.7 contributed modules I enable, it happens only with some (offhand I can say NodeVote, Image, img_assist, to name a few). The modules do work, I was just wondering why the Modules page turns blank after I enable the module and click Save Configuration. If I disable the module (uncheck the Enabled box), then click Save Configuration, the Modules page appears as it normally does with the confirmation and modules listed, etc. Whereas, Enable the module, Save Configuration, and there's the blank screen again.