Hi, I downloaded beta2 ISO yesterday and used DT4.0 to install it. everything runs very well at the beginning, but a error msg came out after vista finish copying files. "At least one device drive that might be required to start your system is not available. Device with missing drivers: sillicon scsi controller" ?(I dont remember extactly.) I had never see this problem before, so I clicked ignore button.after a few secs, vista seems finished all pre-loading, and restart pc itself. I thought I was lucky and I saw a boot menu, but after I chose continue install windows, a **** blue screen came out, ask me check disk, sth wrong with device.... plz use chkdsk /f .etc..............useless..I tried, nothing wrong with my harddrive. my mobo is kv8-max3. 1 ata maxtor 60g (D: and G:) 2 sata seagate 80g (C: and E:)and 250g (M:) I want to install vista @ D: driver which is 20gb ntfs partiiton(primary). anyone can help me? someone told me I d better try DT 3.33 instead of 4.0? ps:sry for my poor english and description.