SteveL![]() Veteran ![]() ![]() ![]() ![]() Posts: 262 Joined: 8/19/2005 Location: Boulder, CO ![]() | Tom: Here is a bit of discussion about the problem, which originated with the April 14 Windows KB4549951 update: https://www.omnitrader.com/currentclients/otforum/thread-view.asp?threadid=16221 I see the problem manifested usually as an Error 3049, which occurs for me when running ToDo List analysis on a list of 400 stocks with 20 strategies. Backed out the Windows update, and no problem. [Edited by SteveL on 5/18/2020 10:48 AM] ![]() |