You are a third-year graduate student working in theory. Your research professor has not provided you with a problem, and seems uninterested in the work you are doing on your own.
Questions
What should you do?
What commitments were made to this student when she was accepted as a thesis student?
What kind of supervision should a graduate student expect from a thesis advisor?
Should a student expect substantive and appropriate help from an advisor, or are there different supervision styles, all of which are appropriate?