Yeah, they all have their plusses and minuses. Hell, some won't even let you "Undo" more than one time. Others take that last "C" right out of CNC. Now that's the kinda thing that gets me steamed. I've worked with Gibbs Cam, Work NC, SmartCam, Mastercam and recently, Esprit.... they all have their ups and downs but of all of them, Mastercam is the most capable package bar none. The company I'm working for now has Esprit and I absolutely hate working with this program but I'm making the best of it. Once you've walked a mile with some of the other packages you may come to the same conclusion I have. These guys are onto something with the hardware issues. That, and there's no telling what else is going on with your computer. Everytime I look at a friend's computer that's been "Giving them fits" it seems I find spyware and all kinds of other crap effecting system performance. So who knows what you've got going on... tough to say. G'luck. -Chuck

"I like to use 90 degree spot drills instead of centerdrills for this purpose. Simply program 1/2 of the desired diameter as your depth and you're good to go. It doesn't matter what size the tool is either as it would with a centerdrill." Same here. Much tougher than a center drill too. Especially helpful when you have to center small holes in materials like 304SS etc.. -Chuck