It just give a blue screen at the begining of the installation into MC. The memory card the is Sony 8Mb official one.
It is working fine with the 1.1.
Fix: I finally find out what happen: I connect the PS2 to the Onkyo receiver then to the TV. For whatever reason, when the PS2 output line character to the screen, the Onkyo receiver can not handle it and just display blue screen. After bypassing the Onkyo receiver with direct connection between the PS2 and the TV, McBoot 1.2c worked!