emc final questions

Now that I have emc up and running I only have 2 glitches left

1: when i try to load in a g-code file I usually fill the first few
lines with the modal codes I.E. g17,g21,g40,etc. However if I try to
load g53 or g10 the program will not run it and instead loads the
default g54 (When I delete g53/g10) which calls out to my var file,
and if I change the var file to 0,0,0 it interprets that as machine
0,0,0 not my part 0,0,0


2: with the bdi install on my 200 pentium, about every other time i
try to do the first jog after starting the system/program I get a
lockup so severe I have to do a power off reboot. Nothing
works...mouse keys.. nothing. Anyone else had this!