Installing raid drivers during installation problem

> Hi,
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> I seem to have hit a problem with installing the RTM of Vista.
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> I haven't had any trouble with the beta/RC versions.
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> The problem is, I have raid drivers on the motherboard which have to be
> installed during the Vista installation. All previous versions have
> accepted the drivers and the installation has taken place and then I've
> been able to use vista fine.
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> I recently received my msdn discs, so thought I'd take the opportunity of
> starting afresh. So I formatted the drive and commenced a totally clean
> install. When it gets to the part for installing the raid drivers it finds
> them on the disc, says it is installing them, but then the installation
> falters and stops.
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> I've tried telling Vista to look on a floppy, a flash disc and in System
> 32 drivers on the C drive, all of which have the drivers on.
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> I run XP on one wd raptor drive and Vista on another as a dual boot
> system.
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> Gigabyte do not have any updated drivers listed.
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> The motherboard is a Gigabyte GA8KNXP, the drivers needed to be installed
> are silicon image 3112.
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> Cheers
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> Graham
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