I have a Dell Dimension XPS R450 machine. I reinstalled this machine with Win 98se. It works fine at my place, no problems at all but when I take it to my customers place for the delivery sometime it boots sometime it doesnt start at all stating no signal on monitor. I have to bring it back a number of times but when I plug it at my place it works fine. At one point even the modem refused to dial in to ISP stating no dial tone.But when I took it home it was dialing fine.I am sure there is some electrical problem at my customers place but I am unable to prove it.Please suggest some solution for me to get out of this problem quick. Thanks