There doesn't seem to be a single thread repository for reporting bugs, so I will post mine in this thread and update as I play more. Overall, the game is terrific. Just as reference, I got Civilization 4 two weeks ago and have neglected it in favor of the GalCiv II Beta the minute I downloaded it on Friday.
Here's a short list:
1- The games crashes and generates an .exe error when I attempt to launch it from the start menu using the regular GalCiv II shortcut. I am able to launch and play the game with no problems by clicking on the config shortcut first and then using the link in the config screen to start the game.
2- The game appears pretty stable. Only froze on two occasions requiring a restart. One time I am guessing was when I attempted to rename all 4 ships I had in space. It froze when I renamed the 4th vessel. The second freeze took place when I tried to upgrade a Constructor ship that was in process of being built. In both cases, the game closed and returned to the desktop.
3- Once a custom ship is saved, I can go back in (upgrade) the saved custom ship and remove all the "extras" (i.e. eye candy components) but not the weapons, defenses, modules..etc. components. For example, In order to replace on laser on the old design with a newer laser, it seems to require me to "clear" the whole design and start over from scratch. The "remove" button doesn't work for anything except the "extras", and the other components such as weapons no longer appear in the little boxes (holders) below the 3d model, so it is hard to isolate those components in order to remove them.
4- Problem with the Starbase management screen: When I send a constructor to upgrade a starbase, the screen pops up with the various options, however I don't seem to be able to select anything and can only click the "accept" button. I am unsure then which improvement the AI selected for the starbase (i.e. mining, defenses...etc.)
5- Problem with the Quick build screen: Custom ships that have since been deleted or made "obsolete" remain among the choices in the Quick build popup although they are no longer on the Shipyard screen. Also, it displays 7 versions at different prices for a custom colony ship I created when the Shipyard screen only has the 1 custom colony ship I created (as it should).
6- All AI players seem to have found two planets each at the start of the game... although in most cases, it seemed like they were able somehow to occupy low grade planets - ps. I am not bellyaching because I was the only one with one habitable planet
7- Although I created a custom race, the AI Reports seem to think that I am "human"... as they say things along the lines of: "the humans represenent 7% percent of the universe and are responsible for 20% of the research".... when in fact the reports should read "the Serrians", which is what I named my race specifically trying to avoid being a lowly earthling, or a dirty despicable Terran

-- The diplomacy screen seems to function correctly though referring to me as "Commodore (my real name)" as instructed.
8- I have no sound whatsoever... no special effects or music - Everything is turned on in the options settings... Does this Beta have any sound?