[ubuntu-in] Difficulty adding CDROM to sysnaptic for installing software (ubuntu 6.06)

[ramnarayan.k at gmail.com]

Hi

am having difficulty getting synaptic to add cdrom and dvd rom

machine is a Lenovo  laptop with DVD / CD combo
am currently running Ubuntu 6.06

every time i say add cd rom it returns the following message

*Error*
The following problems were found on your system:

E: Failed to mount the cdrom.

- the cd and dvd work otherwise -

In the repositories the cd rom options are ticked on

Have also tried the apt-cdrom option but that too does not work

any idea what the problem is and the solution.

thanks
regards
ram