Don't worry, this error looks a lot more scary than what it actually is. In Windows Vista (and sometimes Windows 7) the Nspire registry entry doesn't get updated with your Mapped Network Drive letter.

1. Click on "Start" > "Run"

2. Type in "regedit" and click "OK" (Windows Vista and 7: type in "regedit" in the search box and hit "enter")

3. In the left hand column browse out these folders:

-HKEY_LOCAL_MACHINE

--SOFTWARE

---NSPIRE

(If Nspire is not there click on "Edit" and "Find" > Check all 4 check boxes and type in "Nspire" > Click "Find Next")

4. Double click on "DataPath"

5. Change the "Value Data" to the correct path of the Network Drive you are using. For example change it from \\server\nspire to N:\

6. Click the "OK" button and reopen the Youth Assistant.

You can also open Youth Assistant and go to Help > About Nspire > Advanced > Location Tab. there it will show you the data path and if it is pointing to the correct location and using the Network Drive that you setup.