Heres my take on Panda..
Don't install it unless you favor a hard drive format. Panda installs devices and services as the system level, and they are not removed by the uninstaller, and they will always haunt you when you try to run another AV.
Secondly, Panda doesn't encrypt their definition files, so every AV and AT app on the planet things your infected if you ever try to run something else.
I say avoid this one, and besides, Avast has better unpacker/archiver support, and nearly as good detection ratings.. No reason to run Panda at all. Plus, Panda has a newb interface with no options.