Cracking caulk is usually from movement of the counter and backsplash. Try using a good flexible caulk. Not all caulk flexes the same. A good kitchen and bath coulk would work better. You can also check to make sure that the counter is secure to the base. Screws tend to loosen over time.
thanks I will try that!
Humm, I have been hearing a lot about silicone. Maybe?
Yes, you can use silicone caulk, also comes in clear.