Kernel 3.9.0.2 seems to be working better than 3.9.0.1
Have NOT tried a Cold Boot Up yet (where I had my problem) but Ubuntu Kernel 3.9.0.2 seems to be working better than 3.9.0.1 on my 2010 Dell Inspiron Zino 400 HD Desktop PC! Just FYI!
2013 Dell Inspiron 15 3521 Laptop, 2010 Dell Inspiron 1012 Mini Net Book, 2010 Dell Inspiron Zino HD 400, Sprint Samsung Galaxy S4, and Apple IPad Mini WIFI Only.