Have you been infuriated by Natty Narwhal’s poor/broken support for multiple monitors (#1, #2, #3, #4, #5, #6)? Do you believe that your CPU or GPU cycles should be used to actually do stuff, instead of making a window wobble and speeding the approach of thermodynamic equilibrium? Do you hate Unity anyway? Did you buy dual GTS 450’s to drive 4 monitors instead of 1?
It turns out the fix is pretty easy – just use the Ubuntu Classic (no effects) session. You can set this either on login, or even better, by changing the default under System -> Administration -> Login Screen. Here’s to hoping the Ubuntu developers don’t go too crazy for 11.10/12.04 – or, worst case, that RHEL offers a deal on single seat licenses.