Anyone have this problem? I'm chugging along playing CCTP (v 1.2) with nice cash reserves, then in one turn they go from +30,000 to -30,000...Play the game another 30 years and make sure all of my cities are producing max gold and then when it gets to -5 or so it tells me that my cities are revolting because I don't have enough money! At this stage I am much more powerful than the other nations so I'm not worried that they are somehow taking all of my net worth.

Well theres 2 things that cuold cause this 1 cuold be they have spys in your citys and are stealing gold (Mabe build some units that see spys and fortifuy in your citys). Or more likely if your going down to -30000 then its a bug. If its a bug try going to Call To Power2 website. Mabe thell have some troubleshooting ideas?