few facts and as RorrKonn has put forward there is some guessing included in my theory.

"file times" are different than a missing file. Usually you might suffer this with external hard drives, C: Drive etc. It is the read/write value at time of creation or modification, just metadata. You see it on everything you have on your hard drive when you hover over a file or right click>properties of the file. Here is where it gets murky and that is why.....Possibly you were logged in and remained connected even if not using it, or an accidental file that is long since gone but logged in runtime. If connected unless you went to use the offending prop/item/material you would not know, if you did then you would get the regular "Cant find missing file" search option. Whatever happened it is trying to establish connection to your dropbox and treating it no different than your C: Drive, external drives in order to load your runtime just checks the establishment for file path > additions, modifications as a routine over looking for anything in particular. Can't say I have seen it with a cloud storage but then I am one to avoid those where possible although they do take over sometimes. Dropbox being cloud based app all indications are your browser update might have broken this friendship and upset the applecart.

- Johnny G

"Try animation to get things moving"

lpr001@renderosity.com