Hi    i have a problem with pso2... I pressed keys to make an effect in the chat,keys are these {} (shift) (alt-gr) <>, and now when I move the mouse the resolution drops to 40% and annoys the eye how to solve?

Hm, I am  not sure what keys you pressed. And the resolution does not go below 50%, ever.

But I understand that the keys you pressed changed some HiAlgo settings. THIS PROBLEM CAN BE SOLVED!

There is a file, called settings.ini, that, among other thing, defines shortcuts (combinations of keys) that affect HiAlgo. You can edit this file and change the keys there.

Look at this FAQ: