hi all,
I am working on leopard board dm355,when i load 'uboot.bin' on board it shows following,

-----------------------------------------------------
TI Serial Flasher Host Program for DM35x
(C) 2008, Texas Instruments, Inc.
Ver. 1.10
-----------------------------------------------------


Platform is Windows.
Flashing NAND with ubl\ubl_DM35x_nand.bin and u-boot-1.2.0-dm355_leopard.bin.


Attempting to connect to device COM1...
Press any key to end this program at any time.


Waiting for the DM35x...
BOOTME commmand received. Returning ACK and header...
ACK command sent. Waiting for BEGIN command...
Target: BEGIN
BEGIN commmand received. Sending CRC table...
CRC table sent. Waiting for DONE...
DONE received. Sending the UBL...
DONE received. UBL was accepted.
UBL transmitted successfully.

Target: Chip initialization passed!
Target: TI SFT Version: 1.10
Target: Booting Catalog Boot Loader
Target: BootMode = UART

Waiting for SFT on the DM35x...
Target: Starting UART Boot...
Target: BOOTUBL
BOOTUBL commmand received. Returning CMD and command...
CMD value sent. Waiting for DONE...
Target: DONE
DONE received. Command was accepted.
Sending the UBL image
Waiting for SENDIMG sequence...


after the above it will not successfully load.what will i do?where is the problem?

please help me....