What version are you using?
Is SE installed on a network?
1. This sounds like SE can't file the license file. SE requires a license file to be present on your computer to run the software. It should have been sent via email after purchase or after a new release is issued. Check that SE is looking in the correct folder for your license file.
-Start, programs, SE V_, licensing, license utility...
Browse to your license file folder.
2. If you purchased a configuration that uses a dongle or hardware lock you have to 'plugged' in to the USB port.
3. If you haven't installed whatever license mananging utility your version came with you need to do that first.
a. Obtain Web Key
b. Get correct license file
c. Install flexm manager for floating licenses
I'm not running it on a network and I do have the new license file that was emailed to me coppied over the file that came with SE. V18 was running fine and v19 will not run?