Hello, I've just used cmpro for the first time in some time. I've downloaded the programme and started it off. All seems fine till it reaches airraiders (think that's the ROM name) and the whole programme locks up with an "not responding" windows message. I've using mame117b commandline version, my roms and chds are on external harddrives and my OS is Vista. I'm using a new Acer laptop. Can anyone advise Thanks.