In the absence of a problem, I thought I'd try to be helpful by helping you help me more.
What are you own areas of expertise? I know a local company that's making a few million a year by building an accounting, inventory management, estimation solution that's targeted to landscaping companies. They know the market, and basically built the 'Basecamp-sized' alternative to the million dollar solutions that only exist for very large companies. Generally, even very large landscaping companies (which are their target market) aren't making enough money to move to an SAP-caliber solution and hire a team of developers and engineers to run / administer it.
The ideal problem for you to solve is something that you have enough expertise in that you could identify with the pain point and be able to execute well. Either way, good luck in finding something and nailing it.
Care to link to the reddit discussion?