Subject: RE: phantom garmin dataYou need to clear out the files under the "Activities" folder on your computer: Windows XP C:\Documents and Settings\(username)\Application Data\GARMIN\Devices\Unit ID folder\Activities Windows Vista/Windows 7 C:\Users\(username)\AppData\Roaming\Garmin\Devices\Unit ID folder\Activities Mac ~User/Library/Application Support/Garmin/Devices/Unit ID folder/Activities |