Glad to have helped, Pastor Ron.
There are two kernels in Mint Bianca KDE: 2.6.17-10 and 2.6.17-11.
The ones I mentioned before are used in Cassandra, Mint 3.0 (GNOME version).
Sorry but I had Cassandra in mind, since that's what I'm running at this moment.
The Cassandra kernels are 2.6.20-15 and 2.6.20-16.
In any case, one can remove the 'annoying' kernel with the Synaptic Package Manager. Note: the system always boots into the newer kernel by default.
In either case, the newer kernel has been found to have some issues with sound card drivers and maybe with Video cards.
The problem does not appear to affect most older- type computers.
As for Multimedia codecs, they are installed by default in Bianca KDE (DVD version).
It appears that you have the Bianca KDE light Edition. So in that case you can
add the codecs from the Mint Software Portal: http://www.linuxmint.com/software/?sec=item&id=50