disable lcd controller when booting linux, this prevents ghost-lines while

[linexec-j720] / WhatsNew.txt

v1.3    It is no longer necessery to recompile *.asm files for different machine types, since machine number is passed through DRAMloader.      Added boot logo.        Parameters are read from \CF Card\params file, the format can be seen in boot.cpp file.v1.0
        initial release?