Here you go, Kryo.
http://dl.dropbox.com/u/8468080/AllResearch.EleSav
I did have all the research techs - I was able to build everything, based on city size, use all the warfare techs to design new units, etc, etc.
As I said, it happened suddenly - I think some item cache I explored triggered it, unless it was a random mix-up when I completed one research. Trying to think back, I don't think so though, because I noticed it when I went to build structures in the city, not after getting research finished & noticing only the 'Refined' techs available.
It was also fairly early in the game - not sure how many turns, but I'd bet less than 100 or so.
