<t> I am sure this has been addressed before, and I'll probably get the terminology wrong:<br/>
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I have the steam install on a Windows Vista machine. It played previously until the most recent update when I ran into a problem with Bit Defender. I fixed the issue by excluding distant worlds ...

<t> I am still a bit of a novice but I think I have some of the economic mechanics down. In my most recent game I managed to get my home planet to +27 development and 6598m population, resulting in 135% culture and 196k GDP.<br/>
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Then in a tick my development drops to +21, culture to 105 ...