I think ecoclimber was really disappointed, given talk that 95% of patients would test positive, that he - as sick as he was - tested negative. It appears that number is not going to hold up. I think it was probably a case of everyone getting too excited about XMRV early on - an honest no more, I can't imagine what else it could be. XRMV may very well turn out to be a major factor or the major factor for many patients - thats for sure - but it also looks like its not going to that way for at least a chunk of patients. That will inevitably leave some people, at least temporarily, very frustrated.
The current tests are producing a lot of false negatives. We know that. I can understand ecoclimber's frustration, but that is the nature of testing for a new pathogen. These things generally proceed slowly unfortunately.
My advice to anyone like him/her of a delicate disposition would be to hold off on testing for now until more reliable tests have been developed. Not to start threads like this one telling other people what to think (almost guaranteed to get people's backs up).