I have tried the same. From what I understand etrade is working on all the conversions and until that is resolved you have to call them to sell the stock. But you can buy like normal.
I put a $1.00 GTC 60 days in eTrade but I put that in about 20 days ago and it went through fine...it did give me a warning about a potential $1 million + proceeds but I submitted it anyway...hope this helps, otherwise, I have no idea...good luck...