Same problem here. I exit the block editor and return to my drawing and the cursor is slow to respond in the drawing space (fine outside of the drawing space on menus). I have to save, close the drawing, and re-open. Someone please help!
At least you guys HAVE a cursor. When I come out of the Block Editor in 2011, my crosshairs completely disappear! I still have the windows cursor to select pull-down menus and what-not, but no crosshairs. Sometimes if I switch from paperspace to modelspace and back again (or vice versa), the crosshairs will come back, but not always.
We had one computer exhibit the abnormal erratic jumpy jerky cursor movements in the display area after using block editor, but other similar computers did not exhibit the behavior even with the same drawings.
I saw one place where setting UCSDETECT to 0 helped, but not in our case.
What did help was doing a zoom extents. That made the cursor behave normally again.
I'm working for the IT in our college and our lab is also having problems with the cursor when exiting the block editor. It's pretty random as they can go for a few days trouble free then it does it. Once you point the cursor outside of the drawing and over the toolbars or menus, the cursoe is visible. You can still do commands and everything in the drawing... only you can't see where your at.
We have Windows 7, Nvidia Quadro FX 370 cards, latest video and autocad drivers.