I just recently got this game, I have played BG1, and BG2, I am very familiar with the ad&d rules and I want to know why fighters and the like dont get the specialist attacks per round in the game when you spend 2 proficiency slots. I have tried over and over to get the proper # of attacks to show up but it just won't happen, I do get the attack bonus and the damage bonus but no extra 1/2 attack per round. I have the latest version v1.06 can someone help? Or has no one else had this problem?

The table for weapon proficiencies varies from game to game, and never matches the true D&D one. You can get a patch for BG2 but ive never seen one for IWD.