Ok, just checking but do these need to be fixed or are they supposed to be like this.

The other day I was playing the Vasari, I was able to get my tech level up to the Kostura Cannon.  When I fired it at a Tec Home world it did no damage.  I built 2 and fired them at the Tec home world and it did no damage.  When my ships fired at it they did damage fine.  The night before my friends and I were playing and one of them had the Tec Novalith Cannon and he was doing great damage on an enemies worlds.

The second thing was, I had researched everything in the military tech tree again with the Vasari.  After my research was complete I decided to eliminate some military research labs to increase commerce by building trade and refineries. I noticed that when I removed some of the labs the research areas became shaded out and you could not use or build the tech stuff you already researched.  In essence you have to keep all the research labs you built or you loss the ability to use the things you researched.  One would assume that after you know how to build it you should not have to keep labs to research it.