If I set core=auto, core=dynamic, or core=normal, 3DStudio 4 has some weird "pauses": when it starts, the display is black for a few seconds. Then it seems to work fine. But, when working with some menus at the right pane (specially when you click on the "Render View..." entry), the mouse cursor disappears (the mouse is still captured, but the pointer disappears), and the application pauses for 10 seconds or so. Then, the pointer appears again, and you can continue working as usual.

However, if I set core=simple, none of these pauses happen: no black display pause at startup, and no pauses with the menus.

Do you have any idea of what might be the reason for these pauses? 3DStudio uses the Pharlap DOS extender, if that matters. For the moment I'm happy because core=simple works fine, but I'm wondering if this could be a known issue with known workarounds, so that I could choose a core with better performance than core=simple, yet avoid the pauses issue.

Thanks!!!