Beagle getting stuck at bootup

Hello
I was trying to install ubuntu on the beagleboard, following the instructions given at http://elinux.org/BeagleBoardUbuntu
However after changing the nand parameters the board gets stuck after the following lines:

Texas Instruments X-Loader 1.4.2 (Feb 19 2009 - 12:01:24)
Loading u-boot.bin from nand

I am assuming i wasnt able to set the nand parameters rite, and the board is now not able to find u-boot at the address specified in the nand. Since the board is now not responding to any of the user inputs from the key board i am at a loss as to how to perform a recovery. It would be great if i could some how reset the board to its original factory settings.
I have gone through the user manual but have not found much of my use.

Any help would be greatly appreciated

Regards

Hello
I was trying to install ubuntu on the beagleboard, following the
instructions given at http://elinux.org/BeagleBoardUbuntu

Which distro instructions? karmic or lucid?

However after changing the nand parameters the board gets stuck after the
following lines:
Texas Instruments X-Loader 1.4.2 (Feb 19 2009 - 12:01:24)
Loading u-boot.bin from nand

I'm going to assume you've put the latest uboot.bin on your sd card..
2010-3, which REQUIRES X-loader 1.4.4

Regards,

Karmic. I have put in the latest u-boot.bin