Whenever systems get upgraded, Turtle sign to upload/add files to the document always disabled while using Internet Explorer.
When system upgraded, it upgrades all the default applications including Internet Explorer. When Internet Explorer version upgraded, all the settings gets changed to default and disabled ActiveX settings.
Need to change the settings via Internet Options > Security Tab:
a) Add the site to trusted site
b) Enable ActiveX controls and plugins
Once all above settings matched, have to make sure eb Web site is under Compatibility mode, via Tools > Compatibility Settings:
Add the Web Site name and close all the Internet Explorer instances. Once done, try to open eB Web site and check any Non Approved Document for turtle.
For future system upgrades, make sure you change the Internet Explorer's Automatic upgrading to disable, via Tool > About Internet Explorer > Uncheck "Install New Version Automatically" option.
Hope this will help you with missing Turtle!