Hello,
I sent out a response to your ticket, but I wanted to share the solution here in case others have this same issue. When OP lost power, Mach4 had to close unexpectedly. This can cause some funky things to happen to your profile. What happened here is that the Operation Lock setting was turned on in his Machine.ini file. The fix was to open up the Machine.ini file and change OpLock=1 (on) to OpLock=0 (off).
-Bryanna