I'd check the forge log (it's in the main mc folder (not any sub folders)) with the search string conflict @ (with a space in between). If it comes up with anything you have conflicts, just nothing that would prevent the game from starting. I have them once, and it was a pain in the but fixing since I hadn't noticed it right away.
Good to hear. I had a bug with Thermal Expansion that was crashing my game once. Forgot what it was exactly, but was some conflict with Gregtech I think that I fixed. Only crashed whenever I went to see what recipes that item was used in, otherwise was fine, but still annoying nonetheless.