Ok Guys;
Here goes with the Info.  Hope it helps and I"ll not touch anything on the computer until I hear from you in case you want to test something.  
Compqaq Presario  346 Intel Celeron Processor, 512 MG Memory 100 gB harddrive - not hooked to the internet.  6 months old.
Phoenix BIOX Ver 3.06
ATI Video Card (part of the MB)
Start up menu is Compaq Connectons, Compaq Organizer, and Hot Sync Manager ( Used to upload my GPS System) at one time.
Added to MACH was the MacroPump and Build 7 Screens from my encoder interface mfg.  However, I turned off the macropump and loaded the default screens prior to the trouble.
Man, can I break something when just trying to make it better!!!!!!!
Yesterday, I tried running the Rodneymarker file (engraving) I'll upload to you and it seemed to be running fine until I got the +Nothing to Feedhold+ error then everything stopped and when I told it to continue, it reverted back to the first of the code.  I'll uplod the file.  Never got the file to finish running.
I couldn't get rid of the error so I rebooted.  I then tried my conversatoinal for surfacing.  It will not allow me to select aluminum or soft metals.  When I select the button, it illuminates briefly but goes out instantly once I release the button. 
Mach revision number is R 1.84.001.
I"ll try to upload some files to look at!
BTW, when I loaded the macropump and screen 7 software, the conversatoinal button did not work at all.  It was there but there was nobody home!!!
Guess there is a bug there also for the macropump mfg.  Just my luck.
Guys, Heck, I'll load this thing up and send it to you if it'll help.  I know it's not your software but if I can screw it up, someone else can!  For me it's just a hobby but for the other guy, it may be his livelyhood (probably didn't spell that right so forgive).
Bill