I use MATLAB on Linux and recently installed it on a Windows 7 machine (R2012a). On the windows machine I am having an issue where it there is a long pause (10-30seconds) after I issue a command in the command window. Any command: 1+1, ls, etc. This happens whenever I don't use MATLAB for approximately 30seconds or so and come back and then enter a command. If I enter commands in relatively quick succession, there is no pause. I tried a complete reinstall and I get the same behavior. Ideas?