dvd draw keeps opening and shutting by itself.

my D: drive keeps opening and shutting by itself. It does it when in open programmes or go on the net and search different pages.

I have Norton AV, ad-aware and S&D spyware checkers. Have done all them and nothing. Checked in device manager and its saying that its working properly.

I am running Windows XP pro sp2 on a dell dimension 2400

Drive D:
Description CD-ROM Drive
Media Loaded No
Media Type CD-ROM
Name HL-DT-ST DVD-ROM GDR8162B
Manufacturer (Standard CD-ROM drives)
Status OK
Transfer Rate Not Available
SCSI Target ID 0
PNP Device ID IDE\CDROMHL-DT-ST_DVD-ROM_GDR8162B_______________0015____\5&2641F507&0&0.0.0
Driver c:\windows\system32\drivers\cdrom.sys (5.1.2600.2180 (xpsp_sp2_rtm.040803-2158), 48.38 KB (49,536 bytes), 29/08/2002 02:27)


PLEASE HELP ITS DRIVING ME MAD>