U-Boot problem

hi
i have a devkit8000 board. i upgraded my u-boot from ftp://ftp.denx.de/pub/u-boot/
from 1.3.3 to 2010.06 and built that with arm-none-linux-gnueabi and
replaced it with old one but when i try to boot from sdcard i get the
following result and it hangs~
what can i do?

�5)�Reading boot sector�
ᅁ%�����͵����сa�1�����Ɂ�Ź��5)M�х��ɥ�������ݥ�ѡ�55

202616 Bytes Read from
MMC
Starting OS Bootloader from
MMC...

U-Boot 2010.06 (Apr 05 2011 -
10:02:17)

OMAP3530-GP ES3.1, CPU-OPP2
L3-165MHz
OMAP3 DevKit8000 + LPDDR/
NAND
I2C:
ready
DRAM: 256