Here is where I am at with my dual installation. I finally got my Vista 64 up and running with 4 GB of memory. Vista 32 was running with 4 GB of memory with no problem.
So with two Raid 0 set ups, one on an Areca 1210 Controller (Vista 32) and the other off of the Gigabyte 680SLI-DQ6 nVidia Raid Controller (Vista 64), I am unable to boot into the 32 if the 64 hard drives are physically connected. IF I physically disconnect the 64 Raid 0 hard drives, then I will boot into Vista 32 just fine. If the 64 Raid drives are connected, then it will boot into Vista 64.
Vista 32 was set up first. Vista 64 second.
In the Bios, I have the Areca card ahead of the nVidia controller for boot order. Both boot just fine, but I cannot boot into 32 while 64 is connected.
Is this a mystery, or is there some logical explanation and "FIX"?
When I go into the control panel, system properties, Advanced, settings, startup and recovery to set the first boot device, I am only given one option- VISTA!