My monitor screen blacks out and says "OUT OF FREQUENCY". I went to Safe Mode and tried to set my frequency right but I realized I didn't know how
. I tried desktop>properties>settings>advance>monitor .. but the only monitor refresh rate options were "use hardware default settings (or something like that)". What should I do? Help! 
(I work with Windows XP)
OPERATING FREQUENCY
HF: 30-54 kHz
VF: 50-120 Hz


(I work with Windows XP)
OPERATING FREQUENCY
HF: 30-54 kHz
VF: 50-120 Hz