My laser (Epilog TT24 45 watt) machine went unused for three weeks and now the tube will not fire up, after running vector programs to try to stimulate the tube for about three hours I can now get enough power to just make a mark on a board. This is the second laser tube failure in a machine that is only two years old. The first one was covered under warranty. They say that this one will cost me $2250 to repair. When I bought the machine the literature said the life of a laser tube should be 10 to 20 thousand hours, I got about 300 hours on the first one and only about 500 hours on this one. Is anyone else having the same rotten luck that I am having or is this a problem with the TT24.