Problem with SONY DVD RW DW Q 30A

i have a problem with this sony combo dvd drive it burns all my DVD movies but it does not read a DVD movie when inserted in the drive
Earlier it used to read then i think i accidently happen to remove a software frm add/remove programs due to which the drive does not read Original DVDs
it gives an error saying" the TV port is not placed properly" or somethin like that
Please Help me out

Welcome to CDF’s

Re-install what you removed and see if it helps.

i actually don’t know, which software got uninstalled by me