Having problems with single-user access?
If you're the only user of a particular company file but AccountEdge still won't allow you to begin a task that requires single-user access, some problem may have occurred when one of your coworkers last closed the company file. (For example, it's possible that someone didn't exit AccountEdge properly when the company file was open, or a power interruption caused a workstation to shut down unexpectedly.)
To fix this problem, exit AccountEdge, then start AccountEdge again and open the company file. (When you use the Sign-on window to open the company file, you might want to consider choosing the Single-user Access option to ensure nobody else will open the company file.) You should now be able to perform the task.