Hello friends:
I meet a terrible problem form a long time.

I run u-boot on 9200 board. My u-boot works good in adram when I download it throug Xmodem. But after I down and cp.b it to norflash, When It run, sometimes u-boot dead at:
Unpressing image ....,

sometimes at
Unpressing image ....,
U-Boot 1.1.6 (Mar 30 2007 - 10:24:56)

DRAM: 32 MB
Flash: 2 MB
*** Warning - bad CRC, using default environment


Does anyone could tell me what is the problem, how do i solve it.

thanks in advance
tanson