google drive files not showing on my other computer

first thing i'd check is which account the Drive app on the desktop is actually signed into, not the browser. click the drive icon in the system tray > gear > Preferences, the account is at the top. having chrome signed in as one account and the app as another is really common. if it's the right account, quit drive for desktop from that same gear menu and open it again. there's no manual sync button, a restart is basically it. also was the folder uploaded into My Drive or is it something shared with you? stuff in Shared with me doesn't show on the G: drive unless you add a shortcut to it in My Drive.