Mac Pro with software raid and upgrading to Snow Leopard

Not sure if anyone else has experienced this but here goes. I have a mac pro with 4 500G drives using the onboard software raid. When I insert the Snow Leopard disk and try to install, it fails to find the raid. Is there a trick to get this to work?

Thank you SSSOOO much Greg818. I was pulling my hair out over this problem. I even went so far as to do a full Leopard install with Snow Leopard update on a USB drive and them cloned it over to my RAID 0 array using SuperDuper hoping that this would solve the problem. It seemed to in the sense that the clone went fine but then when I would try and boot from the array I would get the Apple Logo and spinning wheel but it just kept spinning and spinning until finally the Apple logo was replaced by the Do Not Enter symbol(you know the circle with the slash through it).
So came here and found this thread. Your solution worked like charm!!! Once again thank you so much... you saved me from being bald.

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