series wiring

I converted a 2 way switch to a 3 way switch by wunning 14/3 over to a new box on the other side of the basement. The 3 way switch seem to work like there supposed to except for something that is driving my wife crazy. The lights are on when both switches are in the down position or both in the up position. I was wondering if there is a way to change something so that the lights are off when both switches are down Just wondering

I just installed a simple chandelier to an existing(i.e. pre-wired, capped, never used but presumed wired OK in a modern house) ceiling outlet as follows. A to red, B to white(geyish) and ground(uncovered) to orange in ceiling. A&B are from the chandelier base and are a pair of wires (+ & -) with no differing markings, so presumably interchangeable. Tested in ceining with phase tester. Red was hot. Hooked up chandelier as above. Tested, all lite up fine. Here's the problem. The switch on the wall(regardless of position, up/down, i.e. on/off) has a strange interaction with the light. Regardless of the switch position the light comes on(after the initial and subsequesnt throwing of breaker switch for circuit). When the switch is turned to the opposite position, the light goes out(regardless of up/down) AND the circuit breaker is throw. Throwing back the circuit breaker at this point brings the light back on again and it can be turned off with the switch(regardless of position) as per above. Assuming the original, installed wiring is correct, did I do something wrong in installing the chandelier. I can switch A&B but for a simple light fixture I'm not sure this will fix the problem. If its not something I did wrong, then what might be wrong with the original wiring? Note bundles of 3 white, 3 reds looks professionally tied/finished in ceiling fixure. There are no shorts that I know of. Thanks Tony