I'm trying to get around the issue of ctrl key functions not working in Lion (due to new Mac shortcuts) by mapping from option(alt)-left and option(alt)-right to the Windows ctrl-left and ctrl-right, but I'm not having any luck. I've created new entries under Virtual Machine Shortcuts in Preferences / Keyboard, but they don't do anything. The cursor stays at the same position when I press option-left or option-right. Is there something more to this that I'm missing?