Ubuntu 12.10 installer can't detect hard drives

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http://askubuntu.com – I'm hoping someone here could help me with the installation problem I'm having, namely Ubuntu doesn't detect my hard drives. I've tried installing from a disc and using wubi; neither have worked. Drives are detected just fine in Windows 7. I searched around to see if any of my hardware is incompatible, but didn't find anything. Here's a list just in case I missed something: Mobo: ASRock H61M/U3S3 LGA 1155 Intel H61 SATA RAM:G.Skill Sniper 8GB(2 X 4) 240 pin DDR3 GPU: GeForce GTX 560 Ti CPU: Intel i5-2400 3.1 GHz Quad-core HDD: Western Digital WD Blue WD50000AAKX 500GB (HowTos)