I've found your app addictive and useful (I'm prepping for the GRE), but it's a bit buggy in FF 3 on OSX and on my iphone. 1) animation on the word/choices occ

I've found your app addictive and useful (I'm prepping for the GRE), but it's a bit buggy in FF 3 on OSX and on my iphone. 1) animation on the word/choices occasionally flashes repeatedly, usually around 5 times in a row, but sometimes requires a page refresh to get it to stop 2) I've found that after a point some of the words are repeated more than 3 times and if I answer those words correctly for the 4th time I get a point reduced from my "words mastered" count Otherwise, great clean interface. Well done.