I have tried to attach some USB mouse, none seems to work. Basically I do start the .elf (1.4.0) with the mouse attached and should I expect to control the pointer at menu, 'right? Neither a PS/2 mouse through an adapter seems to work. What I do wrong?

Same problem here. Trying load the ELF through USB.The GUI works great but games did not started at all (black screen, freeze)

Here I have a PS2 slim (scph-77004) modded with a crystal chip 2.0.

ps: thanks guys to support the PS2 with 0.11.1 release!