Find "Language"
Click Vodafone Mobile Broadband.
Click Preferences.
Click Language.
Change language
Click the box next to Use system language to turn off the setting.
When the box next to the menu item is empty, the setting is turned off.
Click OK.
Click the drop down list below Use system language.
Highlight the required language and click OK.
End USB modem application
Click X.
If required, click OK.
Restart the USB modem application
Do the following in Snow Leopard:
Click the desktop.
Click Go.
Click the desktop.
Click Go.
Click Applications.
Double-click Vodafone Mobile Broadband.