Can't select rooms anymore! Please help.

[jsl10]

I've been using Home Designer Architectural 2014 for the last month working on our home design (about 3000 square feet two story). Everything has been working great. I can't understand what happened. Now, when I click on ANY area (any room, deck, garden space, anything), it doesn't select the area but selects the entire house! Even a simple garden outside the house that consists of 4 invisible walls to define it is not selectable (without getting the entire structure along with it!). I can click on objects like furniture though and only get that. It was working fine. The last things I did was add some additional patio areas, changed the external wall texture from default to a vertical siding and then re-built the roof to change it from the default to a metal roof. If anybody has any ideas on what I might of done it would be GREATLY appreciated. Thanks in advance.