I had a Fluke 27-II which was doing the exact same thing. I procrastinated for at least a year before I decided to do something about it. I bought the 27-II used, on eBay, and it came from the USA. Fluke Canada replaced it with a brand new full retail box Fluke 28-II, with calibration! No questions, no issues. I was expecting my 27-II to be repaired or replaced with a refurb of some sort, but they gave me a brand new free upgrade. The best part was the turnaround was less than a week! Contact them, you've got nothing to loose.