Installed Movie Studio Hd trial on my Pentium 4 with 1.5gb ram. Much more responsive interface than Studio 14 and nice video to wmv output so I purchased. A few days later I upgraded my cpu, motherboard and ram. Athlon x2 620 quad core, msi motherboard and 4 gb ram. wmv output using same parameters and input file produces a wmv that seems to jump and skip and is jerky. Studio 14 now runs great on this same system. Why did my old, slower computer produce much better output file than my new one?