Thanks for ur replies.
my motherboard doesn't have an on-board graphics card.
Just now I got the message that my PC Assembler has fixed the problem
of those vertical lines by removing the graphics card and putting it again. He told that previously the card is not fixed properly,but.......
also told me that the system is restarting again and again(he said that some system files must be corrupt). He has told me to change the Boot Sequence in BIOS as 1st CD-ROM, then Floppy and the HDD, and put the winXP Prof. CD in the cd-rom, so that the OS will boot from the CD-ROM and will automatically try to repair the OS.
If that doesn't work he told the last option to re-install the OS again.
Any solution its getting worse and worse.
Any solutions......
I've to got home and see what he has done.
See u on tuesday. Bye guys.
Thanx