Virtual Lab will not launch

[#1]

when i try to launch virtual lab.  Instructions say that the user name and password are already filled in and not to change them.  I get an invalid username and password error when i try to continue.  

[#2]

Perhaps more details are needed. Who created the virtual lab? Is it associated with a course? If so, which course? Did you receive instructions with the class? The instructions will also typically include the username and password, even if they are supposed to be filled in. 

As a suggestion, if this is related to a SAS class, try typing an s in the username field and see if a suggested username and password popup that will fill in the rest.