The Ubuntu Desktop unfortunately has bugs. This is how we cope with them.
How to Triage
Are you new to bug triage? Most frequent questions have already been answered here.
You may also be interested in some useful debugging tips to get more information about a problem.
If you really want to get started, you have read the above documents, and you still feel like "What am I supposed to do?" Don't worry, that's how we all felt when we started.
Bugs with patches attached (it'd be nice if you could either comment or test them to make inclusion easier)
http://bugs.launchpad.net/~ubuntu-gnomemm - C++ related Desktop Bugs
http://bugs.launchpad.net/~accessibility - Accessibility related Desktop Bugs
http://bugs.launchpad.net/~ubuntu-art - Artwork related Desktop Bugs
- How to work with upstream bugs: