My OS has been very unstable the past month. I am running WinXP 32 bit. The company that built my computer instructed me to simply plop my Windows disk in the drive and restart the machine. The machine boots, then goes into Windows setup. After 20-30 seconds of the windows setup blue screen, windows shuts down and says that it has encountered a problem. The screen suggests a check disk. I ran the check disk twice-no luck there. I am running a RAID 1 (mirror) configuration. Any help is appreciated!!!