whenever I've tried to add a compound with more than 3 parts (or add a book) when I click on the add a material button, all it does is go back to the top of the screen instead of giving me another line to use to add the compound.
(so basically all i can currently add are compounds with 2 parts).

This just started happening about 10 days ago, not sure if it's my machine or the site.

All I can suggest is try a different browser, for ex. if you're using Mozzila then Try Opera/Safari or Chrome.

Go figure...another reason to hate on IE.....works like a charm on Goolgl Chrome. Thanks a bunch and enjoy the new +2 Cat boots recipe I entered!

Always welcome. (: