Rom Manager is a pile of junk. I rooted my phone using Suroot's guide and then read how to install a custom Rom. The rooting guide was very clear (thank you Suroot). Having read lots on how to partition the SD card I got gparted and followed the YouTube guide. Then I decided to take a short cut and downloaded Rom Manager and install a Rom that way as it looked much easier. I downloaded one Rom, and then tried to install it. Needless to say it didn't work, so I was very grateful that I had backed up my phone. I tried another Rom. That didn't work. I then deleted Rom Manager and installed Leedroid Rom using Suroot's guide. So if you are going to install your first Rom don't cut corners, short cuts don't work. Read the guides, read the guides and then read them again. If you follow them to the letter they work. I do have one question though, the phone seems to take a while to turn on now (longer than it did running a stock Rom) now that I've got Leedroid. Is this normal? Suroot, many thanks.