@lordjulian : Thanks for the report. Just tried this quickly and it is fine here:
Are you up for some testing so we can figure out what is happening and get you up and running. First thing, let's make sure you have the latest files. If you go to your Steam product, you can right-click on MAX and see the properties. Select Local FIles and select Verify integrity button and that will scan your system to make sure the core files are all intact. Once that is done, see if that helps with adding entities into an empty level.
If no joy, if you can zip up the "GameGuruApps\GameGuruMAX" folder and email direct to me at lee@thegamecreators.com I can check out any logs that have been created, and see if anything is missing there. The "failed to save" error is interesting and could indicate the folder is locked, or the file is locked, or the folder for some reason is write protected, or there is no disk space left to save the file. Hopefully we can find out the cause quickly for you.
Also, can you give me your PC system specs (CPU/GPU/HDD size, memory size, etc). Thanks!!
GameGuru Classic will continue to be supported with bug fixes and functionality additions.