exist that problem also on Radeon and/or Intel cards/IGPs?
I've seen reports of the graphical issue on the production queue for both nvidia and ati/amd cards. I have a dual graphic card laptop (amd/intel) and have never seen the issue.
Geoff implemented code that will allow more control over how many and where space monster will spawn, but it hasn't yet been applied much.
I implemented it, though I don't think it's working properly, as there shouldn't be vacuum dragons as close as I'm seeing them to my homeworld, except possibly if they move faster than I think and I'm getting very unlucky.
maybe I need to launch the game in Elevated mode in order to get it to run.
That shouldn't be necessary. If you can reproduce a crash when not in elevated mode, and particularly if there's something interesting in the freeorion.log file after the crash, I'd like to know. Also, if you run from the command line, there might be an interesting exception text output after the crash that I'd like to know about.
Clicking on certain stars can crash the game, although this seems to be hit or miss.
Again, if you can reproduce that, and can find something in the logs or in the command-line output after the crash, it'd be good to know. I haven't seen any star-click crashes recently.
Too many monsters
You should be able to reduce their frequency during galaxy setup.