Error trying to modify a table from a template

[Mark]

I am just in the process of building my first Access App. I downloaded a
template, but it will not let me add/modify fields to the tables. It gives
me the following error "You can't modify the strcuture of table "Asset"
because it is already in use by another person or process". It is only on my
machine, and I rebooted twice to see if it would go away, to no avail.
Any help greatly appreciated.

 

[schasteen]

Make sure all forms, reports and queries are closed. You can't edit a table
while an object it is bound to is open.