I had the same problem the other day. I care about it because it's another symptom I can use to make Gigabyte give me a board that actually works! Lot of unhappy customers out here.
My DS3L is playing up (the not holding OC problem). After trying some of the "fixes", went into bios and the setting was gone. Re-flashed bios and it was back. Rebooted after turning EIST and C1E off, it was gone. I asked over at Anandtech about it because I thought it wasn't right. It came back all by itself though.
You're the only other person I know of so far that has seen this happen.
One thing I've noticed about the strange voodoo magic going on with DS3L's, many victims have an E21xx cpu.
Yes but it could be a sign of worse to come. I've had nothing but trouble with my DS3L.
Please at least fill out a tech report because hopefully the more that do will make gigabyte work harder at fixing the issues. These boards have very good potential. Unfortunately there are a few too many quirks with them at the moment.