I've run into and have read about a number of problems with saving. Here are a couple of suggestions:
- I assume you have other programs running. When the program is not responding press [
Ctrl-Tab] Alt-Tab (

must have been a senior moment when I first wrote Ctrl-), which takes you to a different application/program, then press Alt-Tab again to come back to X8. If you're lucky you may find the interface screen had been hidden underneath and is now on top to continue with your save.
- Try Save first, then Save As for the jpg - clutching at straws here.