Required Reading for Your Ultimaker 2

This is just a list of links to some very useful websites with information on getting the most from your UM2. Read these if you are having any print problems.

http://support.3dverkstan.se/article/23-a-visual-ultimaker-troubleshooting-guide

Excellent visual guide to diagnosing print problems. Many of my print solutions are based on the information from this site.

http://support.3dverkstan.se/article/30-getting-better-prints

Great descriptions of the effects of machine settings on your prints. Dives into some of the advanced settings on the UM2.

http://umforum.ultimaker.com/

The official Ultimaker Forum.  Lots of useful information here. But be sure to read the information in the other links before posting here. Many of your questions can probably be answered in the above links.