USB booting :: One boots, another doesnt

I have an old 128 mb Apacher usb thingy that boots dsl just fine.
But my Apacher 256 does not.
Any suggestions?
I even tried two partitions, but I cant find out whats wrong.

Problem solved, I found an answer after intense googleing, and ended up... at this forum

http://damnsmalllinux.org/cgi-bin....;t=3038

Worked perfectly! Thanks

original here.