i have a quad core with 3gb of ram and latest version of java runtime. TWS(latest version) worked flawless since today. Then all of sudden today i am not getting es quotes, then tws freezes constantly and every click takes 10-30sec to respond. Reboot/restart didnt do anything. I ended up changing the java run command to 512mb and nodirect=false, and that seems to fix the problem. It's all back to normal now, so strange. actually nassau i think it was your post i followed thanks!