My review limits are set to the maximum and am studying for a large exam and trying to go through a alot of cards. I have reviewed 10 cards in one deck but can see that there is still 5 left to review but I can not study them as " Today’s review limit has been reached, but there are still cards waiting to be reviewed. For optimum memory, consider increasing the daily limit in the options.
There are more new cards available, but the daily limit has been reached. You can increase the limit in the options, but please bear in mind that the more new cards you introduce, the higher your short-term review workload will become."