well, i have windows xp. i dont know much about computers but i am trying to install vista. before i start upgrading this message showed up: The following applications/drivers are not supported in Windows Vista The following devices will not work until the device driver software is updated. After the installation is complete, contact the device manufacturer for updated driver software for these devices: MS ArACPI Driver 1394 Net Adapter can someone please tell me what these two things are..how i can get them after i install vista, and will in affect my computer if i choose to install it. thank you very much.