In Dynamics GP 9.0, when you first login, you are prompted for a role to preset the reports and info on your homepage. But roles change over time, people get promoted (hopefully!), responsibilities change or maybe you just picked the wrong role!
You can change your role by picking Customize This Page in the upper right of the home page. Then pick Change Role in the lower right. Select a new role and your off.
You will lose custom settings on your homepage and GP will warn you about this when you pick Change Role. If you don't want to do this, click cancel.