Sun, see if it's in your Startup group (using Windows Explorer).
k, it was just a thought, glad it's holding your settings.
This is going reasonably well for a first-time overclocker.
You've overclocked an already overclocked card, you have frame times that are making my face purple, you haven't thrown anything or at least haven't typed about it, and a handful of lost WU's are not unexpected.
What's next, an interim cleanup of all the stuff you've tried and for now have discarded, then a steady march on with the first number while watching temps?