CD/DVDROM icon missing:(

i m using Compaq presario 1800T ,pentium II , designe for win98.
but i m using WINXPpro sp2 version 2002. since last 2years.
i have DVD/CD rom,
form last 2 weeks i have seen that my laptop READS a CD but cant dispaly any data.
my CDrom icon , E: is missing suddenly.i have no access to my CD rom.
in device manager i can see IDE ATA/ATAPI contollers, with NO exclmatory mark.i cannt find my CD/DVD ROM drivers .thus no exclamatory mark.
it is detected by BIOS but fail to detect in windows.
i tried deleting Upper n Lower filter,but no joy.{http://support.microsoft.com/kb/314060/EN-US/}


i dont know..which CD rom i m using. i cant format my laptop.i tried syestm restore but no use.

i dont know wht to do:( help needed desperatly.tried lot of ways.

If the drive is detected in the BIOS, is visible in device manager but does not show in explorer it has probably failed. Sorry, but this machine has given you many years of service and it is time to get yourself a new one!