I have had my Ultimaker 2 for just over a week now and wanted to let others know about a couple of items.
I found a screw on the print bed today - I believe it was one of those holding on the fans. The two rear ones were still there but extremely loose. What has happened to the fourth I do not know - I cannot find it anywhere. These need to be checked.
The print head, or more precisely the sheet metal shielding around the fans, DOES foul previously printed objects when using the multiple objects function - extra space should be allowed.