I had OSX,Windows 7 & Ubuntu installed on my Mac and was using rEFit and something has happened to one of the partitions when I was trying to partition 20MB of the bootcamp partition as I needed to make a 20MB image for my uni work. I restarted Windows to boot into OSX and the rEFit menu that gave me the options to boot into OSX,Windows or Ubuntu will not show up I just get a grey screen. After a while it takes me to the grub recovery menu. Is there anyway I can fix this without re installing OSX using the install DVD as I have uni work on the laptop that has to be handed in tomorrow. I think that I have it backed up anyway on my external hard drive through Time Machine but I don't know when I last backed it up so I can't be certain it is 100% on there. Just need to know if there is any other way before the re install. If I use disk utility through the OSX install DVD to delete the ubuntu & windows partitions will OSX boot? as the work will be saved on the OSX partition.