I am having problems installing Studio 12U into my desktop computer with Windows 7. I have tried several attempts without any luck. I keep getting an error message "An invalid arguement was encountered" when I try to open Studio 12U. I installed Studio 11 and it works fine without any issues. I also installed Studio 12U into my Windows 7 laptop and it is working perfectly without any problems at all. I know this program is already prehistoric, but I sure love the way it works.