You can increase the letter size by editing a code line in capthca_image php file. With some skills you could also replace it with a math challenge as you said.
testing
Posted 6503 days ago
testing - I wonder if you can change the default size/look of the captcha lettering? they seem kinda tiny. or perhaps add a math challange instead?
rffre
Posted 6503 days ago
tesadfer
Adrian
Posted 6504 days ago
Paula, only if you buy the ratings with it and place them next to comments, so each user can also post votes, but ratings will remain separated from comments.
Paula
Posted 6504 days ago
Great script. Do you also have a script that allows a user to leave a comment such as this but also provide a rating for a product so maybe a 5 stars type of system?