Ubuntu 13.04 on Dell XPS 14

Hi all, I'm having an issue installing Ubuntu on a dell XPS 14.

Steps so far:
Turned off secure boot in BIOS
Turned off the Intel Rapid Storage and returned SATA operation to AHCI
Shrunk the Windows 8 partition by 100GB
Booted Ubuntu from USB

It didn't detect the presence of the Windows 8 OS on installation, so I had to manually partition the free space I had created. I added 40GB for Home, 55GB for / and 4GB of Swap. The installation was successful and upon boot I'm presented with the GRUB menu, which only offers me Ubuntu (No windows is listed). If I try and boot into Ubuntu I just hang on the purple background screen and nothing happens. I've managed to boot back into Windows by selecting boot options on startup and selecting the Windows Boot Manager from the UEFI boot menu. In Windows diskmgmt.msc it almost seems like the partitions haven't been written to. I don't know if this is normal but the partitions for /home and / are listed as RAW.

Any ideas as to what I can do to fix this? If you need anymore info then please ask and I'll do my best to provide it.

Thanks