There is a round to cylinder option on some gparted.
I think it is to make room for some of the bigger bootloaders, but there is some space needed to allow certain other functions (such as gparted).
I think as of today it was changed to be in favor of virtualbox-iso-additions.
Figured it was, wikipedia said it was IA32, so maybe we need to make it i686 so there's no question.
How are you starting xfce4?What's your .xinitrc look like?
Chrooting is probably what you're looking for.
If you have a broadfailure card, you will probably need broadcom-wl-pf-core2.
Does your user have access to the optical group?
Have you restarted nfsd?
You might use smartmontools to check to see that the drive(s) aren't failing.