I am sorry you have the flu and I hope you get well, soon.
Here is the HTML source and my attempt to provide a screen shot of the MY PAGE display problem. I am not sure, exactly, how to save it so you can see it, but I will try. I will attach an .HTM file and a WORD .DOC file with the screen image in each. Hopefully you can read one or both. I will also append the HTML source statements in case those are helpful.
You comment that his is an isolated case. I think it is occuring more then you think.
Also, I have tried 2 different web browsers (IE 6.0 and Firefox 2.0) so, to me, that reduces the probability of a browser issue, though, I was not able to try it with the new Internet Explore V7.0. Perhaps someone who has that level can try and and comment on the success or failure with that level.
Here is the HTML source:
<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">Page not found | Foldit @import "/portal/sites/all/themes/custom/adobe/aggregate.css";