Are you sure you aren't talk about UBCD4Win? Cause this is UBCD (4 dos) forums.
If you have confirmed you are in the right forum, please tell us what program you ran, because its hard to track the problem down if you aren't specific.
Visit the UBCD Wiki: http://wiki.ultimatebootcd.com
Please check your UBCD
ISO MD5 Hash Sum
; May prevent issues later on by not having an exact copy.
Currently Working on Common Issues and Repair Tips
on the Wiki.