main window is not loading

hi, Am using matlab r2011a version. It was working properly. But now if i open it logo will come first as usual and then main window will open,but it is blank.It is not loading at all.Can anybody please help me. Thanks in advance

[Luffy]

 What is it that should load onto your main window,mine generally remains blank

Answer 1

[Andreas Goser]

There are tons of different reasons why a startup fails and in case there is no error message, it is not efficient to discuss this in writing.

Please test is MATLAB starts calling it with

matlab -nojvm

and provide this information to Installation Support of MathWorks when you call them.