i have a Toshiba A300 satellite laptop . it is only a year old ,the problems i face r as follows nt when i type ,the cursor moves to the starting point of the line automatically. also when i hit backspace button the cursor moves to the start of the line . also when i select file or folder in the desktop,the file being opened is always the 1st file (at left top corner ) in the desktop,it is same when files in folders r selected .. also when i on my laptop ,before the os starts loading a loud beeping sound is produced and after a while the os resumes loading i do also have some scrolling problems ,when i scroll down it doesn't work and sticks to the upper side. what should i do ...? i really cud use some help...?