Page Problem

Hi, I’m a new WordPress user. Installation went smoothly. So I put this support question in the Troubleshooting segment. I also tried to find a solution on the Forums, but couldn’t find what I was looking for. So here goes.

I’m using WP 2.3.3, PHP 5.2.5, MySQL 5.0.45.

I created a new Page (#3 after Home & About). It looked fine. I could edit it. Then I decided to delete the page and create a new one with the same title (#4). It kept showing the old (deleted) Page #3 contents. Even though when I looked at the page in the admin page, it showed the correctly altered text. I did this a couple more times. I then created another page (now had #1 #2 #6 #7) with a different title. Now I get Page #6 with the new text and title for Page #7 and Page #7 has the text and title of Page #6. (About the same experience as Page #4). When I delete Page #7, the old text reverts to Page#6 when displayed, even though when I go to edit the content, it shows the new (correct) text.

Also. I added some categories but they never got displayed.

I cleared my cache every time I updated a pages content. The pages were all Published.

WP looks to be “flakey” from my first experiences with it. So. Does anybody recognize this behavior and know how to fix it.