When I open Lightromm and either hit F1 or use the menu to access help. A box opens titled Adobe Community Help. I type in a help topic, oh say "Curves", and get a bunch of results on the left. I click on the first one and I get suggestions for Photoshop 6. If I try and limit search to a single product it offers only Lightroom 3. How can I limit Lightroom 4 help to only Lightroom 4? I don't want suggestions for Photoshop or other Adobe products I don't even have those other products installed.
This is what I see in Lightroom 4 help - which might be similar to what the OP is getting?
I can view the LR4 help pages, and follow links within there - but I can not use the side search function in the way (presumably) intended. This computer has LR 3.5 and Photoshop CS5 installed as well as LR 4.1
In the Adobe Community Help application, there is a preference setting which determines what happens when you press F1....the choices are "Open Community Help Application" (which is what you've shown with your screenshot) or "Open Help in Browser" (which is what I think Johnbeardy's display shows). I agree that the ACH application needs to be updated to allow searching of Lightroom 4 help, but if you need to search the help in the meantime I suggest changing the ACH preferences might be a good idea.