Trying to run Parallels and VirtualBox at the same time on the same Mac, in Mac OS Leopard: results in instant crashing of the whole Mac (black screen of death). It doesn't matter which of the two VM-Solutions was started first. Why is this? Isn't PD supposed to be a normal Mac application? And VB the same? why can't I run both at the same time? rudolf mittelmann Linz/Austria
