Classmate reimaging problems?

So after finding that our classmate had about 900 MB of hard drive space, I followed the manual to gain back the 5GB mentioned on the FIRST site. After going through the first step of reimaging for the second time, when we boot the computer back up, it ssays “BOOTMGR is missing. Pres CTRL+ALT+DELETE to restart”
Has this happened to anyone else, and does anyone have a fix? It would be much appreciated

I think it’s all in how you exit the process and leave the boot stick in.
The bootmgr it’s looking for is on the imaging stick.

Try imaging again, but to be sure you’re not rushing things, leave the stick in until after the Classmate has been fully rebooted again.
When the imaging process finishes and it asks you to hit any key, it will leave you in the DOS prompt window. Type “Exit” to leave that.

Many thanks. We’re about to reimage it again, and I’ll try that. I only took it out because it said to remove it at the end of step , and I didn’t reimage it the first time so I don’t know if there were problems then.