Maybe you want to see your Contacts screen. Maybe your List View. Daily Calendar? Work Week Calendar? So many choices!
This, along with setting/checking scheduled backups, I normally do when I visit a client for installation or training: Automating/customizing certain actions just makes life easier.
While versions vary slightly, here is how to change the Default View when you open ACT!:
1) From within ACT!, pull down the Tools Menu.
2) Select "Preferences"
3) Select the Startup Tab (over on the right)
4) From the Startup View pull down menu, select your preferred Startup view!
5) Select "Apply" to save your selection