i started backing up with time machine last month, im only using a 120gb external drive,but my mac is new so it only has 60gb used. my question is, when i enter time machine from the top menu icon, the only "desktop" i see is my current one, and one from the first back up i made, that backed up all 30 or 40 gb that were on the mac HD. it still backs up every hour, but i dont know if these back ups have worked. like say i needed to restore, i could only restore the first back up, from june, which doesnt have all the files on it i have now.... hope ive explained myself! cheers!