Colors went DARK after installing Snow Leopard

Question

Anyone else have this problem? I installed Snow Leopard, everything went smoothly except I noticed my background desktop image was extremely dark. Even the UI is darker, except the dock appears whitewashed, as though the brightness on it was cranked up separately from everything else.
I tried calibrating a new color profile, but it came out looking pretty much exactly the same as it already is.
I found a workaround, and I copied everything out of my libraries/colorsync/profiles folder from my Time Machine drive, from before I installed SL. It's much closer to normal now, but much of the UI displays color information incorrectly, like in the dock.
Does anyone know a real way to fix this problem, without having to rig a temporary solution as I did? Or is this just something we have to wait for an update on?
My monitor is a Dell 3007WFPHC 30" LCD, if that makes any difference. I've also noticed I have NO software screen brightness/contrast controls anywhere. The keys don't do anything, and I have no sliders in the System Prefs, Display area, like many others seem to.
Thanks in advance if anyone knows anything about this.
-Falco

Answer 1

I can't tell you if "No Display Connected" indicates an error or not. I see the same message on all my Macs, but they all have built-in displays. I think the Display Connector info pertains to external or secondary displays only, but I'm not certain about that. Maybe someone with a similar Mac model will chime in here with a better answer for that.
Is there anything unusual about your setup? Are you maybe using a graphics card not originally shipped with your Mac? Starting up with the 64-bit kernel? Have you installed any graphics drivers besides what came with the OS?
Also, have you checked your display manual for anything relevant? I've used various monitors with client's Macs & some have settings that switch off automatic detection of resolution changes, sending display info back to the source, or other things of that nature. If nothing else, see if there is a reset procedure or general mode setting command mentioned. In particular, look for any automatic "smart" settings that aren't so smart. I was recently running a redundant pair of identically configured Mini's with identical, out-of-the-box new LG monitors for a client. The two monitors refused to behave the same until I went through all their menus & set everything identically. One would think brand new monitors straight out of factory sealed boxes would be set the same, but they weren't. Go figure.