Went to turn my LC6090 laser on today and I got the usual message on the screen, System Starting Please Wait. That's all the farther it will go and just hangs there. Anyone have any ideas as to what the problem could be? It a 2007 80w USB model running LaserCut 5.0

The power supply cooling fan is running and I've tightened all the wire connections I can see. Still no win. Any suggestions?

Thanks