I installed Premiere 12 on our toshiba laptop running Windows 7. It worked fine for one project, but now when I try to open another project nothing happens. Have tried uninstalling and reinstalling, but still nothing. Even going into the Organizer and trying to open the video editor from there, or open a new PE project from there, nothing. No error code, no nothing.
Please look at the following links to determine if any solutions in them will work for you. If not, we will discuss your issue further in the morning.
Also check the Event Viewer for entries for errors, information, or warnings that might be related to your issue at the time it occurs.
Please see Computer/Manage/Event Viewer/Windows Logs and its Application category.