Editor won't load
Are you running Firefox? Firefox tends to suffer "preferences rot", where the preferences file slowly deteriorates. Along the way, things stop working. DPR seems to have a lot of stuff that quits working in the early phases of decay.
You may need to delete your preferences file and restart Firefox.
The open-source LightZone Project: http://lightzoneproject.org/
|Blue and yellow in water by fireplace33|
from Ink and water
|Kylmä joki kopio by Kaappo|
from Shutter speed 1/25 or slower
|WR_2.8_13 copy copy by photoprof|