I installed NIS 2010 under Windows 7 Home Premium, which in turn is running under Sun VirtualBox 3.1.6 under Mac OS X 10.6.3. I'm giving the VM 1.5G of RAM out of 4G total. It took a couple of reboots of Win7 before NIS authenticated and started working properly, but that only lasted one or two more VM starts. Now NIS will not boot or start at all, whether by doubleclicking the desktop icon, using the Start Menu, or using the Action Center. Any suggestions on how to get NIS working? Thanks, John