Tyan Power Up/Down problems

I have a few power issues with the tyan board

The system works but i cant boot up from the front pc button i have to use the back button on the powersupply.
It resets fine and boots into Suse 7.3 fine.

Could this be becuase i cant access the motherboard software on linux and need windows 2000?

I got a 400 watt PSU ATX 12V

The connecters seem to be connected right at the bottom of the board but it wont shut down properly with the power button. I can reset it but not shut it down.

I can't imagine that Linux has anything to do with this.

Are there any BIOS settings to control the power switch?

Something about MPI or ASPI or something like that
im not quite sure about the configuration

could it be that?