I just posted recently about this issue. Sorry for the quasi-repeat but wasn't sure if I'd get a response if I added a comment to my last post. My problem is that I'm getting stuck virtually every time I practice. When I reach the end of the reviews that are due I don't get new words. Instead I just keep getting more reviews in order of which will be due next (97% due, 94% due, 87% due...). Sometimes if I go back to the main page then start studying again I can get one new word before getting stuck again. When I am stuck the blue indicator for reviews doe does not go down (but occasionally goes up). It generally indicates a small. number of reviews due. The green new words added indicator always shows some words. I have lots of words in my queue and two active lists with words still to be added so it shouldn't be a problem of not having words left to add. I'm using Chrome on Vista. There do appear to be JavaScript errors when this occurs, but I don't know enough to interpret them. They seem to indicate problems accessing a resource. This is pretty frustrating so any advice would be welcome!