I just replaced the floor in my bath with ceramic tile. So far so good and now I am putting the toilet back. With wax seal in place and flange screwed into the floor, I set the toilet over the flange bolts. Again, no problem. Now, I need to screw the front bolts (my toilet base has 4) into the floor through the base but have run into a snag. First, the shape of the bowl doesn't allow a drill to fit for a pilot hole and second, when I push the screw through the hole, it hits the flange. Am I doing something wrong? Thanks in advance for the help. Scott