Every link I have in categories sends users to the home page.
Other links - ie recent posts and tag cloud continue to work as they should.
I've just updated to WordPress 3.3.1 I also changed themes, so I don't know if the problem is due to changing themes or due to the WordPress update. It doesn't seem to matter which theme I use - categories still all react as though it is a link to the home page. I'm using the standard Categories widget. Removing it and restoring the widget hasn't made any difference.
Manually typing in the link doesn't work either - eg http://computerchalk.com/category/hints-tips/ reloads as thought it is the first page, (http://computerchalk.com) even though the full address is shown in the address bar.
Any ideas anyone?