That's not quite the problem. The problem is that relativity says that gravity is caused by warped spacetime, and quantum theory predicts that gravity is due to virtual graviton exchange(a.k.a. really f'ing complicated process, in which the laws of conservation of mass/energy can be suspended temporarily for a fraction of a nanosecond), and both are remarkably accurate in their fields. And they don't play well together, when their realms coincide(relativity is used for near light speed travel/or near massive objects; quantum for the really really small level) in a near light speed, microscopic environment. We don't know what happens then, and we must to know things properly. So yeah, just felt like clarifying that baffling concept, even though it contradicts nothing you said. Again, I encourage you to refine that theory, as all theories are part of the scientific process, right or wrong. What I oppose vehemently is Tom Bishop's style of pseudoscience, which is basically summed in 4 core components:
1. Have no real theory, it helps when dealing with attacks if you can change your theory to fit the attack
2. Attack the mainstream theory whenever possible, regardless of the rationale behind such an attack, or whether your theory has an explanation for the problem
3. If a criticism is discovered against your theory, either ignore it, attempt component 4, or state that it isn't so VERY LOUDLY...
4. If someone asks for clarification, make things confusing by adding in weird terms and symbols you just made up so that the person asking feels dumb, and hopefully accepts your explanation.