Bests & Worsts Reviews from Amazon

I purchased the Tac-Force gray titanium spring-open knife a little more than three months ago. Up until a few days ago I loved the knife. HOWEVER the blade is now springing open "unassisted," in my pocket or just sitting on a table. The knife has not been damaged in any way -- have not dropped it or otherwise done anything to cause it to malfunction as described. This is not a sporadic problem. It simply will not stay closed at all. As a pocket knife, it is now useless to me, actually dangerous to carry. I have contacted the manufacturer and hope they will resolve the problem in a fair and reasonable way.