Using an aluminum imac with an ATI RadeonHD2600 and 4 mb ram. Am trying to use the Windows Moviemaker and Windows DVD maker (I know, imovie and idvd are far better) with Vista Ultimate in parallels 4.0.3540, but keep getting message that my video card does not meet minimum requirements and that the video card does not meet the minimum level of hardware acceleration. Parallel tools are installed. Is there a fix for this?