yesterday my 19" crt monitor die.
and i have LG flatron 19" LCD monitor.(tn panel, 2ms, dsub(75hz),dvi(60hz) support).

when i use crt
com_maxfps 120
r_disrefresh 120
r_mode 4

now i'm using 19" LCD.
now q3 setting is..
com_maxfps 120
r_disrefresh 0
r_mode 8(1280*1024).
using dvi port so refresh 60hz.

all right?