Light01 said:
...What is the cause of the problem?
How can I fix this?
OBTAIN A LEGAL COPY OF THE SOFTWARE!!!

I did a little research on this... These so-called "portable"versions of CS4/Photoshop are illegal, they are not created, nor sold by Adobe.

If you acquire this software without paying for it, except for a trial version, you are stealing software.

Please stop wasting everyones time trying to get support for a hacked illegal copy of this nonexistant software suite!!!