Problem adding a new page – possibly database problem

Hello

Our WordPress installation has developed a problem in not being able to add new pages. This was working fine – I think it is a database problem, as I got a new WordPress and put our changed theme and plugin files into it, then tried removing those to see if any was the likely culprit – but this didn’t change the behaviour.

What happens is the new page is created in the database, but WordPress times-out while creating it (then the entry in the database for that page has id 0). If you then go to the Manage->Pages page, you get an apparently infinite recursive loop where ever more-and-more pages are displayed, successively nested by one level each time. I’ve just done another test, where all the pages displayed recursively were the new test page (even though there are lots of other pages in the database, and previously I had it displaying all the pages recursively).

I thought the new page getting id 0 might be significant, and so it would appear – if I then manually change that to a higher unused number, all the pages display properly in Manage->Pages.

So the question would seem to be – why is the new page getting id 0?

Any thoughts?

(As an aside I’ve noticed another “infinite-loop” type problem if you add a page with the same name as an existing page, so WP 2.1 does seem to have a loop bug of some sort.)

Thanks

Warren