boot loader crashes

[Petri Helenius]

I updated a machine with ABIT VP6 (dual S370) motherboard from -CURRENT 
in May to recent -CURRENT and since then the boot crashes with a message 
which is visible for only a fraction of a second until the BIOS message 
shows again. This is reproduceable with recent CD's. I´m able to boot 
the system using 5.2.1 release CD and then just switching over to the HD.

The bootloader seems to gone through multiple changes so I couldn´t 
immediately locate a place which could be at fault.

Any ideas or suggestions would be appreciated, I would hate to have to 
ditch the board.

Pete