Deecey: it's not my mesh, it was Karina's and I offered to try to fix it. I didn't sub anything or split and mirror anything. My first step was to run mesh cleanup and see what resulted. I watched it weld so tried it in Poser and it was ok. After Karina had a problem with the exported version I reimported the cleaned one, exported as .obj and re-imported to try it and didn't have a problem. Am I ok in emailing you the mesh as it's not mine - Karina emailed it to me so I don't think it'd be a problem.