So basicly i am using just one computer, to quad box

AMD Athlon 64 x2 5600 2.81
2.00gb ram
Windows XP

trying to run 4 wow's

problems i am having:

Macros not saving

Keybindings not saving

after an hour of play, random blue screen of death

i have read most threads, also anyone have any need to know macros, i am leveling 4 shams

Thanks for the help