I recently started using WordPress and I have just started playing around with themes.
However, the only two themes that seem to work are the Classic and Default. I have downloaded 2 other themes, TwentyTen and Atahualpa but neither seem to work. They appear in my 'Manage Themes' section, but do not work either in Preview or if I activate them.
In the case of TwentyTen, I get a blank screen. In the case of Atahualpa I get a blank screen but with a link to the theme developer or its download.
WordPress was installed on the server by the domain hosting company (through the control panel). I did not upload it myself to the server. I don't know if this matters.
There are no spaces or gaps in the folder names. All permissions are set to the same, full 777.
If anyone knows how to fix this so i can get some nicer themes, that would be great! Thanks.