[Cooker] acpi and mdk9.1

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Hello,

I tried to install mdk9.1 with acpi support on my laptop wich is a compaq presario 2144 but it failed.It seems that when i enable acpi support from lilo.conf ("acpi=on") my laptop freeze when it load kernel.when i turn acpi off in lilo.conf my laptop boot and work fine.what can i do to enable acpi ?
Alex