I initially set up my new Professional Weather Center 02064 without a PC connection, when I got the message that it was full I went to connect it to my PC. Unfortunately I had to unplug it from the power thinking that the battery backup would save the information, but when I plugged it back it the date and time were wrong and the software told me there was no information to download. Does that mean I have lost all my previous information? Is there anyway to find it? As it should not be any different to the power going out. Other than this the whole family enjoys checking the weather.