I've been having trouble with one of my document recently. The equation editor was acting weird and the equation were disappearing. Now, this document is all corrupt and the pictures and equations are mixed together, enlarge and distorted. Now I just realized that the picture and equation are not only mix inside the document they are mixed with other document as well. I just open and old document that I haven't use for a while and now the equations and figures from the old document have been replaced by the crappy and distorted pictures and equations from the other document and its really a mess... that was the last time I was using zoho