Originally posted by missingno:
Well, first I thought the screenshots would display "logged off" and "logged in", but after reading the first post carefully, I think they both to be meant "logged in". First shows the forums overview and the different forums on the left are missing, while the second image shows that there is missing even more content on the specific forum site. However, it seems to work for the OP if he is NOT logged in, so everything shows up fine.
As the problem occurs with Opera as well as Firefox and the common thing is the status (logged in or off), I wonder if it has to do with cookies and/or any third party software filtering.
I tend to agree with you about the interpretation of the images, which is why I edited my last posting to add its last sentence. I looked at the source code for both sites and nothing obvious jumped out about why the site coding would cause this. Initially I was thinking along the lines that there might be a code-based call out to some unique URL at code points corresponding to the broken parts of each page, which URL was perhaps being blocked by some kind of system-protection software. However, those relevant URLs are successfully called earlier in the rendering to obtain some of the data that is displayed in the OP's images. And, because it's occurring with two different brands of browsers built on different rendering engines, it has to involve something apart from the browsers themselves, unless they are both miss-set the same way (whatever that miss-setting might be).
The log-ins involve the retrieval and usage of username-related blocks of source code that are not employed when one is not logged in, and there may be something involved in that retrieval process that is being externally blocked by the system such that everything thereafter is blocked as well. My thoughts run to the possible involvement and interference by any number of adblocking, anti-malware, cookie-manipulation, and other similar programs.
