my computer is asus a7v600-x(via kt600+8237),barton2500+　over 3200+, 1024m ram, sapphire 9550 display card, two 80G sata hardisk, and one 200G hardisk. use windows + sp2. the problem is open the directx and said has some files(ksxbar.ax, kswdmcap.ax, vfwwdm32.dll) is no really install in windows folder.some one can tell me what can i do! thanks!