Has anyone else had TWS freeze on them the last couple of days? I click on a bid or ask, the price shows up in the lower line and can't be changed. The quotes freeze, and the software has to be shut down and restarted. This has happened at least 3 times since yesterday. I sent customer service an email, but I'd like to find out if this is a TWS software issue, or if it's something peculiar to my computer.