I trade with IB and use Esignal as my data provider. I usually run the Java based TWS but today it took a dump on me at around 2:28pm. I was trading GS, but it dissappeard from my portfolio sheet and I couldn't get it back up. I would type in the symbol and press enter, but it would just show a blank line. So, I opened up the desktop version of TWS and all was fine. Just wondering which version of TWS you all used?