while I think that this post would be better suited in the SoPW section, rather than the Discussion section, I will try to help out anyway
 
This was originally posted to SOPW, but I moved it on the basis that it was not someone seeking enlightenment on a matter of Perl, but rather someone with a question about the Monastery and how it works. Given that the Site HOWTO suggests that site-related discussion should be posted under the Discussion section, the post was moved accordingly.
 

 
What browser are you logging in with? If you are using Internet Explorer 5.x, it has typically had some problems when viewing perlmonks.org in different ways. This could simply be yet another IE problem (if it is what you are using.)
 
Before pointing to a specific browser issue, I think it might be more prudent to have the anonymous monk check his username and password details and had them resent via email to ensure that they are entering them correctly - The simpliest explanation is most likely the cause of the problem. Failing this, think more laterally - Cookies? Required for login. Are they enabled on the anonymous monks' system?
 
The only reason I suggest these more simple explanations is that if the cause of this problem really was an issue with Internet Explorer 5.x, I feel that many of us would have experienced this problem already previously, particularly given the wide-spread usage of Internet Explorer 5.x.
 

 
Ooohhh, Rob no beer function well without!