MATLAB is not enabled

Question

why do I get this message when executing following command?
better_be_4 = psjavascriptu(2+2′)
??? Error using ==> psjavascriptu
MATLAB is not enabled

Answer 1

Dear Tom Ruark, thank you very much for answering to my
question and sorry I am slow to respond.
> have you tried reinstalling Photoshop?
Yes, I have.
> Try any in the File -> Scripts menu.
I tried "Layered image to independent image files" in the menu,
which ran in a success.
> Try any of the VBScripts in Adobe Photoshop CS3\Scripting\Sample Scripts\VBScript
I found "Adobe Photoshop CS3\スクリプティングガイド\サンプルスクリプト\VBScript,"
(the pathname includes some Japanese characters)
tried double-clicking some of these. I saw some action is done, some demo
image is shown, and 'complete' dialog pop up.
> Try this script as well and tell me if it says true or false.
> Copy paste into a JSX file and drop on Photoshop.
> alert(app.featureEnabled("MATLAB"));
I did the above and a pop-up dialog said "false."
Thank you very much again!