forgot to add sata drivers to my nlite cd, then when i was installing it on my live system, i had my backup usb drive plugged in, was on the phone to my girlfriend when the partitioning screen came up, i just saw one drive there and thought 'there's my os drive', remove paritions then i created the new partition and realised the size was not the size of my main drive! luckily, i stopped there and made no other changes to the drive, then i used testdisk partition recovery tool to rewrite the parition tables, took about 5 seconds to fix and get all the info 100% back as it was, then i gave a big donation to the maker!!