My windows 7 machine's dirty flag is being set all the time on my primary partition. It is a RAID-0 striped drive which have been working for the last year without a glitch. The last few weeks every time that I reboot the dirty flag is set and chkdsk runs without finding anything to fix.
This started happening about a month ago but I can't think of anything which changed at that time to cause this to happen.
How can I out what is causing this dirty flag to be set?