I always set it to right hand mode (except when I forget to, lol) and that has always worked for me, export meshes, normals, and UV cords but uncheck export materials. I also check apply modifiers I am currently using 2.70. Just wish there was a way to make that the default.
MAME Cab PC: i7 4770@3.4Ghz (passmark 9945), 12GB RAM, Win 8.1/64, GeForce GTX645 (passmark 1898); Shiny new laptop: i7 4800MQ@2.7Ghz (passmark 8586), 16GB RAM, Win 8.1/64, GeForce GTX870M (passmark 3598); Old laptop: i5@2.3Ghz, 8GB RAM, Win 7/64, Intel 3000 graphics