Does anyone know where I can download the drivers for my Dell mouse? I have an Optiplex GX280 running Windows 2000. For some reason, It did not come with drivers and is using the default windows drivers. I want to set the scroll button to double click when pressed but I do not have that option under the mouse settings using the default Windows 2000 drivers. However, it does give me that option on an XP machine using the default drivers. Please help!