The game is great. Love it. BUT... it''s true, some towers are not powered even though they should, and some don''t shoot even if they are full of power. I had SONARS and DOOM TOWERS full of power and not shooting. I could actually ear the SONARS shoot, but couldn''t see the blast and enemies in range were not taking damage. Just so you know, when I first placed the SONARS, they were shooting. At one point, they just stopped. All this, without destroying any walls or wires. They just stopped and never worked OK again. Also had a MORTAR next to 2 EXTRACTORS, and no power visible in the MORTAR. Hopefully you can fix this, because the game is great.

Game seemes to stop powering towers when you have alot going on in later levels.