Bootloader problems on an NC

Hi again folks,

Now it's the school holidays and I've got plenty of time on my hands, I've had 
a good ol' hack on an NC at home.

I can get the lastest bootloader (0.99a) to load but when it tries to start 
the kernel (downloaded from ftp.uk.netbsd.org/pub/NetBSD/arch/arm32/\
snapshot/20010403-stephen-NC/) I just get either black and red vertical 
stripes (with netbsd.NC) or bright cyan and magenta flickering, 
mostly-vertical stripes (with netbsd.NC_WSCONS).

(I tried the bootloader from the same dir as the kernel images too but that 
just gave an error - something to do with not finding any (S)DRAM IIRC.)

I've tested the 16MB SIMM in case that was dodgy (it's fine). Any suggestions?

Thanks
Stephen