I'm running Mission Planner in a virtual Windows 7 machine in VirtualBox on OSX Lion. I was using 1.0.66 and just installed the new 1.0.98 and I've found it to be so slow it's practically useless.
Why the sudden downturn in performance, what did I miss?
you need to enable GDIplus,
open the planner
goto configuration > planner. and tick the use GDIplus, and then resart the planner.