Try asking your members this.
Create the thread, turn it into a sticky thread, include it in your mailing list, add your own problem, and see what response you get.
Your members will do two things:
1) They will give you an incredible amount of useful information. You can orientate your community to tackle the most common problems. You can develop new groups/categories for these problems, establish action teams to resolve the issues, and create content based around these problems.
2) They will increase their emotional investment in the community. By disclosing information about themselves (and seeing that disclosure reciprocated), they increase their emotional investment in the community. This is even more effective in communities where problems and emotions might directly overlap (action, circumstance).
Simple, but useful.