If you map to your Departmental Data folder for any reason, the new path will be: \\ag.psu.edu\shares\xxxx, where xxxx stands for the folder name.
These steps will allow you to map a drive to your My Documents. These steps are specific for Windows XP.
This How To will allow your computer to "forget" its IP number and get a new one. This is useful for troubleshooting network issues.