Post installation

I just installed Drupal 4.5.0 on a Linux box. Upon accessing my Drupal home page (login page), I get this warning message:

Notice: Undefined index: messages in /home/mbc/htdocs/iso/drupal/includes/bootstrap.inc on line 434

My guess is that the function `drupal_set_message' was called with an invalid argument. I would appreciate if a Drupal guru could shed some light, although the message seems innocuous.

The relevant code snippet is attached:

The search doesn't work on my website. It hasn't since I started it months ago and even after the latest update it doens't work! Anyone know why? My website is jupak.com

Gah, just when i thought everything was running smoothly, this! I just tried creating a new book with a sample authorised user and there is no way i can do it! Authorised users can only create new pages for existing books. They can only create new books when "administer nodes" is selected, but, this gives them too much access! .How do i do it?? Please help!

Regards,
Mo

As I outlined in http://drupal.org/node/13600, I'm encountering major problems with admin/modules in 4.5 with certain modules including the filemanager module and a custom module I built. Any advice on where to look for the failure source is appreciated!

THansk!

Radi

I've been having a very odd error on every page viewed by every user. I finally tracked down the problem.

I was getting this message.
user error: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 query: SELECT * FROM aggregator_item WHERE fid = 0 ORDER BY timestamp DESC, iid DESC LIMIT 0, in /path/to/my/web/root/includes/database.mysql.inc on line 125.

It seems that 4.5 doesn't offer a way to have created pages added to the navigation. While looking for a way around this I've seen several other requests for help with the same problem. The handbook even mentions it

At this time, not all themes support the link insertion behavior.

but doesn't mention how to solve the problem...