I have a 32-bit Vista Home Premium Acer labtop which will only boot in safe mode. If I try to start it normally, it loads the Acer logo, then the Windows Vista loading icon, then a blank screen. After the screen turns blank, the Windows welcome sound plays, but no login page appears. I have run a disk check, a virus scan, and used sfc /scannow from safe mode. The disk check and virus scan are clean. The sfc /scannow failed with an error about being unable to repair SmiInstaller.dll. I have no System Restore points available. Does anyone have any suggestions about what I could try? Thanks!