please call 877-782-6966 and report your bad strips! They said they have not had enough reports on lot M10GW103 to fix the problem. If you're getting bad strips, check the back of the strip package for the lot number. Chances are, it's this same number. Even if it's a different lot, it needs to be reported. We pay too much to get bad quality strips. So, if you do please report it so they will improve the quality of this expensive medication. Oh, and please do not let your pharmacist try to tell you the cracks are perforations made for breaking and they're supposed to be that way. And that they're supposed to fall apart... because they,re not!