There’s no doubt about the fact that, for me, Lucid 64-bit is a vast improvement over Karmic 32-bit – in terms of performance, anyway. I’m still having a few teething problems, but happily they’re minor. One issue I have (again) is with VirtualBox and USB support. I had to install the 64-bit Karmic version of VirtualBox (3.1.6), since the Lucid version isn’t released yet. After importing my virtual machine, it booted up fine, but all the USB devices were greyed out! A seemingly familiar scenario, but I checked all the usual things, and it eventually became apparent that version 3.1.6 of VirtualBox has problems with USB support in Lucid 64-bit. Read more…