sir, could u please help me 1. i tried the command 'xrandr -s 1024x768' to change the monitor display resolution. but it didn;t work. what could be the reason. 2.Network Interface Card: "Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)".this net work card is not detecting in one system. but in some other systems it is detecting. how is it get detected. 3.if pen drives do not mount automatically if there is any way to mount it. regards radhakrishnan. mt.ijk