I guess it is just me, but looking at it now, I would much rather run BT5 on a disk, thumbdrive, or virtual box opposed to installing it straight to my HDD. The system is very fragile in a sense that you can have hell getting it back to normal sometimes. When using BT5 as a primary os, I found many errors and broken packages / missing files etc that seem to just pop up out of random. I made the switch and just started using the Ubuntu distribution because you can download most of the useful tools in BT5 such as Nmap, Metasploit, Wireshark, etc... It takes a while longer to set it up the way BT5 comes out of the package, but I think in time, it will be a bit more stable. It is wierd though, as I know BT5 is based on the Ubuntu distro, but the out of the pack Ubuntu seems much more stable. As for BT5 I am going to be running it in a Vbox from now on.
I don't care how ‘secure’ your systems are. If you have stupid people running them and using them, you can't win.
For those that know