1. IB software appears to have a problem with double charging for partial fills where the remaining fill happens a few days later. This has happened to me twice. The first was resolved and I just emailed (help) today about the second instance. 2. It seems you are not able to purchase (sell) an option contract if there is no open interest. I attempted to sell (to open) an option contract that had just been rolled out today. There was an active bid/ask but the TWS rejected the order saying: "Rejected: This contract cannot be valued at this time". I called and the rep went over it with me and said he would refer it to programming. I played with some other contracts, entering outside orders and it was consistent, no open interest and the order rejects. Relatively minor stuff overall and the system continues to sing right along. I keep referring people over to IB all the time...and they're opening accounts and are all happy. I hope IB can keep up.