I have copied my company to a test company, gave it a new name and I am not able to switch to that company???? I can see the test company there in the select company box but when I select it I just go back to my regular company.  Can you help me please??

I'm having the same exact problem, but I have security access to everything.  I went back and made sure there wasn't a company number next to my name because I want to have access to both companies.  Do I need to be set up with 2 logins?  One for each company?

Yes

That was simple enough  Now is there any way to set my new company as the default company when everyone is logging in.  I have a few employees who are afraid they are going to enter data into the wrong company at first.  We have to keep the old company open for awhile to look things up or I would just deny access to it.  I checked in system defaults but I didn't see anything there.