The original problem, that /etc/acpi/events/asus-lock triggered on this button and locked the screen, should be resolved now in karmic because this event handler has been removed - the mapping of ACPI event to hotkey is now being done by the asus-laptop driver. If the key is still being mismapped in karmic, this will need to be fixed in the kernel package rather than in acpi-support.
The original problem, that /etc/acpi/ events/ asus-lock triggered on this button and locked the screen, should be resolved now in karmic because this event handler has been removed - the mapping of ACPI event to hotkey is now being done by the asus-laptop driver. If the key is still being mismapped in karmic, this will need to be fixed in the kernel package rather than in acpi-support.