Hi,
That means that no driver exists to rollback to. This feature is only
available if you upgraded a driver after installing Vista to begin with. It
is not to allow you to rollback to a driver from a previous operating system
or to a non-corrupt copy of an existing driver. For the latter, you would
simply "upgrade" to a new copy of the same driver, overwriting the existing
one. Also, certain pieces of hardware do not allow for driver rollback.
As "rom" is simply read-only memory that doesn't use a driver, I am certain
that you are actually referring to something else like perhaps a CD-Rom
drive? For this you may need to look at controller drivers, not the
individual device drivers. In any case, what you are seeing is because there
is nothing for you to rollback to.
--
Best of Luck,
Rick Rogers, aka "Nutcase" - Microsoft MVP
Windows help -
www.rickrogers.org