When I installed it to Memory Stick there seems to be bad error.
Inside texture library folder, there were folders and files named with Symbols. and I can't remove them.
Anyways, I renamed the old texture folder to something else, and then copied the right texture folder to memory stick. Now it works just fine.
So if you are going to install to memory stick, FIRST instal it to computer and then COPY/PASTE to memory stick, and it'll work like a dream

Just if someone is going to have same problem in future
