Im trying to install Windows Vista x64 and it says bootmgr not found. From what I hear the problem is because I have a Sata hard drive and a IDE optical drive. I found this link to microsoft http://support.microsoft.com/kb/928902/en-us and I thought it would help. I installed 32 bit windows XP with no problem and when I try to run setup like it says it says it is not a valid Win32 application or something like that. Anybody have any other ideas? I dont have access to a SATA optical drive at all. I have also tried unplugging my IDE drive and I still get the same message.