This is my third WordPress installation and the first where something has gone wrong. There is no way to preview a post. I have to publish it to see it. In addition, when I click on a theme to preview, it shows the current theme instead. I can still change the theme at that point, but there is no way to preview ahead of time.
This may or may not be related, but I have a more serious problem as well. I can't see my pages. Links to my pages are visible in the nav menu, but clicking them shows the homepage. The pages do show up in the manage menu, and everything appears to be in order there. But try to view from the blog and nothing.
Please say if I need to provide other information. I installed 2.6 and then upgraded to 2.7 shortly after hoping it might solve the problem.
Any help would be greatly appreciated. This has delayed my launch and I'm running out of time.