Other Trade Problem

Why am I unable to trade in my newly opened account?
My open order does not appear to be working, why not?
The average price shown for one of my positions is incorrect
Monitoring stock loan availability
When will my trades settle?
Why is my market order fill in line not with Time & Sales?
What do I do if I accidentally placed a trade in the wrong account?
Why do I not see my linked account in the drop down menu when placing an order?
What is the difference between Trade Date and Settlement Date?
Why is my account holding a currency position that is not my Base Currency?
What are Regular Trading Hours?
Do you automatically convert the sales proceeds from my closing stock trade to my Base Currency?
Is there a minimum order size?