I'm pretty new to Umbraco, and I'm hoping this is something obvious not yet covered in the PluralSight course.
I've just installed Umbraco 7, standard install using SQL Server CE via MS Web Matrix. I use WebMatrix to fire up Umbraco CMS and then I browse to http://localhost:58507/umbraco to login and create my DataTypes, DocumentTypes and pages etc.
I save my work using Save & Publish and I can see my changes etc. but if I restart my laptop and go back into Umbraco all of my work is gone. No DataTypes, no DocumentTypes... just the defaults. Inside the solution tree in WebMatrix I can see my work - my uploaded media, partials and views. But they do not appear in the content tree.
This happens every time I restart the machine. What on earth am I doing wrong?