The latest Service Pack from Autodesk for 3ds Max 2010 and 3ds Max Design 2010 software includes nearly 30 fixes for issues with undo, performance, responsiveness, viewports, material workflow, and mental ray software. Specific areas addressed are Biped, Bitmap Pager, Bitmap Proxies, Containers, Edit Poly, Interoperability, Licensing, Materials, mental ray, Particle Flow, Performance, Photometric Lights, ProOptimizer, Render To Texture (RTT), Rendering, UVW Unwrap, and Viewports.
3ds Max 2010 Service Pack 1:
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=13642460&linkID=9241178
3ds Max Design 2010 Service Pack 1:
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=13642201&linkID=9241178