How do you fix lighting in preview (work window)

in New Users
Basically, I've loaded an environment and lights that I want. In the Aux port, they light and show up in Iray preview beautifully.
But in my main workspace everything is too dark, I can hardly see the character, and can't navigate the scene at all. I use texture shaded for this while I work.
I have preview lights on, no idea what I may have altered to cause this. Thank you.
Comments
Try Ctrl/L and see if that helps.
I can see the figure now, but the background is still dark. Thank you so far, I don't know what ctrl/L does, I thought I had the poreview lights on.
If you are using a camera, rather than a perspective view, try turning the Headlamp on under the camera settings..
Oh, good idea, okay
ctrl L toggles the light preview on and off - it's on by default, so the first press turns it off and just gives a generic headlamp (without having to have the Headlamp on).
You can turn the headlamp off entirely in the General group in Render Settings.
Try adjusting the intensity of your scene lights until the preview looks good. The adjust ISO in render setting until the renders look good.