DueE,
I have two computers at my work station. A different NRU on each box. One box is newer and XPish and the other box is OLD as Brian indicates. Boxes are cheap and switch cables key board accessable these days. I did this because I had the problem you have just had.
Brian, I read what you say, but I experienced problems using NRU 10 on all releases below 6.0. I keep old computers aslo so the chipsets in the modems and Com Port RS232 don't get too far out of date with the dumb phone systems. Did I tell you the one about the M1 breakout box that wouldn't RS232 with a pentium II? Worked with all Com Ports on any older machine but not anything new.... this was a couple of years ago now.
Rob, it IS possible to back up all systems DR5.1 and up using N* Mangler for R1T1 and NRU 8/9 on Rls 2 and up. I particularly like the Excel worksheets where I can. It lets me print and make changes at the same time.
Cheers
PhM