Dear Sirs, I am running a machine with windows xp prof. intel 2.4 ghz, 256 ddr ram with an internal modem.Whenever I try to dial up to the net,I myself hear the phone dialling tone but a box pops up saying "There is no dial tone".(I had this problem since I purchased my pc 2 years back.But the problem was not severe.)Now whenever I log into the net,After typing any browser's address,at the last second when the site was about finish to load the connection gets terminated. Sometimes the connection gets terminated once in 2 or 3 mins very often.Sometimes the entire screen goes blank and reappears after 2 secs. ""TO MY HORROR YESTERDAY,WHEN I LOGGED INTO THE NET AFTER % MINS SCREEN WENT BLINK AND A COMMAND AUTOMATICALLY APPEARED IN DOS PROMPT.It is "D:\>del msinfu.hlp""" I dont know waht to do.PLz Help.