[PsyWreck]

I've found an interesting bug involving a colinize ship.
If you issue a colonize command on a planet with a colonizer after it has no movement left, and only after you cancel it's current orders, it wil move an extra space.
So by cancel order, colonize, cancel order, colonize, etc. You can colonize as far as you can see in one turn.

Also I'm running Vista and encountered a bug involving the mouse cursor being very unresponsive. By changing the resolution from being 32 bit to 16 bit seemed to fix it for me.

I've also found at empire creation, using the Naturally Depressed option for -500 and the Emotionless for 1000 to be interesting.

And the only minor annoyance is the whole having no intelligence output at the end of a turn, and it stating that 100% of your intelligence hasn't been allocated.