A system that includes environmental controls is described that at least enhances the experience of giving or viewing a presentation. Once the user has access to the schema validation model of an application, the user may attach Extensible Markup Language schema files to a document and control definitions, grammatical rules, and other settings dictated by the attached XML schema file. The above-described modification must be made to all the 64-bit slots on a system. The antenna member and the fixed tail cooperatively operate in a first antenna mode when the antenna member is in the first orientation. There is a back sheet and an encapsulant between the back sheet and the porous non-conductive layer flowable through the porous non-conductive layer and bonding the back sheet to the solar cells.