Windows Install on Infinisty 865PE Rev. B RAID

Hey Guys,

Got a question about system setup here. It's on setting up Windows, but is hardware related so I opted to post in this section.

I'm revamping one of my systems with twin SATA drives in a RAID 0 array. I want to use these for boot.

The mobo is a DFI Infinity 865PE Rev. B, with two ports on the mobo for standard SATA and two for Silicon Image SATARaid SATA drives.

The issue comes up when installation is ready. Windows installer sees the RAID 0 array as a drive, and will let me create a partition, but it tells me there's not a Windows XP compatible partition when I try to go further.

Is there another driver I need for this to work?