I had the video settings at 1280x1024, 512 texture size, preload in system memory, preload skins, hardware vertex preocessing, optimize object, optimize terrain, 60 fps. Based on your suggestion I set about changing these settings. In changing the video settings, the 1024x768 resolution came up with the 1024 texture size.
I selected that resolution, the program went through an initialization, and then going from offline to online caused no program hang! I changed the texture size from 512 to 1024, set the frame rate to unlimited, removed preload in memory and preload skins, and the hanging problem seems to have gone away! I am running 1280x1024 resolution. The texture size change seems to have made all the difference.
The 1280x1024 resolution setting is not displayed when video settings are selected, which looks like there may be an issue there. I never set the resolution to 1024x768 before now because of the LCD 1280x1024 monitor on this machine. Maybe that was the problem.
Thanks for the extremely good clue!!
Regards,
Malta