desktop top edge panel has disappeared

[nancyg]

Binary package hint: yelp

My desktop Top Edge Panel has disappeared. I have no idea why. This has never happened to me before. How do I get it back?
How can I navigate my files or the web without any way to access anything?
Using the latest Ubuntu upgrade, the Heron.

ProblemType: Bug
Architecture: i386
Date: Sun May 11 19:35:12 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/bin/yelp
Package: yelp 2.22.1-0ubuntu2
PackageArchitecture: i386
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: yelp
Uname: Linux 2.6.24-16-386 i686

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this issue and helping to make Ubuntu better. Examining the information you have given us, this does not appear to be a bug report so we are closing it and converting it to a question in the support tracker. We appreciate the difficulties you are facing, but it would make more sense to raise problems you are having in the support tracker at [WWW] https://answers.launchpad.net/ubuntu if you are uncertain if they are bugs. For help on reporting bugs, see [WWW] https://help.ubuntu.com/community/ReportingBugs .