The most common problems people have with all.net are these:
Content missing: Likely you don't have javascript turned on. Or alternatively you are using https under the misconception that it makes things "secure".
Page with undesired response is returned: Some pages give messages like "You lose" - or - "No such page here". If you got there by clicking on a link from one of our pages, chances are the problem is in a proxy server or other similar content altering filter at your site. It has to be disabled if you are going to use this content. Contact your site administrator and tell them of your problems and they should be able to fix it in a whiz.