Random desperation ftw?
After I finished typing the last post, I restarted for the 50th time after installing windows updates and reinstalling the control center.
Here's what got my lights working again... at least, for the moment.
I quick-changed my colour. 2 seconds and then black again.
I enabled 'Dim lighting zones' and the lights actually CAME ON. Wtf? And they stayed on.
I disabled 'Dim lighting zones' and the lights became brighter, and stayed on.
Let me know if this works for you. I think I'll make sure any auto-dimming is turned off from now on. Seems there's some insidious bug with it.
Had my machine for 2 weeks and having problems already I'm also getting high temperatures on mine -- tech support haven't responded to either of my queries (I submitted the one about the temperatures over a week ago).
Glad you got the lighting fixed sounds like the program was hungup on a process outside of the command center ..
Concerning your heat issue:
I could call Dell directly in addition to sending an email (digital trail) -- I have read a lot of posts regarding the heat issue and you may just have to "re-paste" the cpy/gpu down again. While I have not had any problems there were a lot of ummmm less than optimal cpu/gpu paste jobs by the factory.