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Step 1 of that was on another post I found. I tried that to no avail. I'll try the second two. Thanks.

How about something like this lisp function? (defun c:foo ( / x y) (setq x 0.5) (repeat 22 (setq y (* (* x x) (sin (expt x 0.5)))) (vl-cmdf "point" (list x y)) (setq x (+ x 0.5)) ) )

Data is stored on hard drives as ones and zeros. Part of the hard drive contains a map, that tells the O/S where the various bits of the data is stored. When a file is deleted, the data is not really deleted, but instead the area where the data is stored is marked "available for use" and the map that tells the O/S where to find the data is deleted. Recovery software attempts to build the map again, and if the data has not been overwritten, it can usually be reassembled. But once those areas of disk are overwritten by newer data, the previous data is gone. This is what making backup copies is important. Especially with things like cryptoware out there. Good luck.

I do all of my work local and copy files to the network. A lot of newer firewall software and security software out there that is incompatible with CAD and other software. IT personnel are usually clueless. I usually have to track down the problem and show them something from whatever program I am using, then they still don't understand. I went an entire week with no AutoCAD, went over and over on needing the water jet related programs, yet nothing works here. They have all updates blocked and refuse to update anything themselves.

Sometimes I find myself shaking my head in disbelief. This is one of those times.