I've tried build 1922 and build 1940 on my new iMac (20" C2D 2G RAM 256MB VRAM) and got the same result: If I start either the Parallels or ImageTool apps a process gets created but immediately hangs and the app's UI never appears. Activity Monitor says the process has one thread and 0% cpu time. I am unable to kill the process so I have to force the iMac to shutdown by holding down the power button. When sampled I get the following call graph from Parallels: Analysis of sampling pid 347 every 10.000000 milliseconds Call graph: 100 Thread_0f07 100 0x6735 100 0x681a 100 0x4f097 100 0xf9069 100 0x1f3397 100 CDeviceList::CDeviceList[in-charge]() 100 open 100 open The only thing non standard I can think of about my iMac is that I got the build to order model with 256MB VRAM. I've tried uninstalling and installing Parallels with reboots at each step etc but I'm still dead in the water. Any suggestions?
