This problem has been since my last installation of DS, and remains after I installed it again. The symptom is: the pointer (system default, white arrow with black edge) behaves normal in all other areas -- menus, bars, property pane, command pane -- but becomes invisible when moved to the black drawing area. The pointer function is there: when it hovers over elements, the element gets highlighted; when drawing lines, you can see the beginning and ending point of the line; when selecting smart dimension, the square pointer shows up. But after exiting to normal status, the pointer disappears.

My system is WindowsXPSP3, which is not supported now, but I think this problem is not related to XP. Version V1R4 can run on XPSP3, so most system at that time should have no such problem. I searched and found the most suggestion to this is to update the video driver, which I also think irrelevant, for I have already updated my video driver to latest (and the last version), and since the video card was widely used at that time, I think most others should behave OK. The video card and driver information:

Video Chipset:                                                                  Intel GMA X3100

Video Memory:                                                                   384 MBytes

Video Card:                                                                     Intel GM965/GML960 Chipset - Integrated Graphics 0 [C0] [Lenovo]

Video Bus:                                                                      PCI

Video RAMDAC:                                                                   Internal

Video BIOS Version:                                                             crl14363.ks3   PC 14.18  9/19//2007  13:45:21                

Hardware ID:                                                                    PCI\\VEN_8086&DEV_2A02&SUBSYS_20B517AA&REV_0C

PCI Location (Bus:Dev:Fnc):                                                     0:02:0               

Driver Manufacturer:                                                            Intel Corporation

Driver Description:                                                             Mobile Intel(R) 965 Express Chipset Family

Driver Provider:                                                                Intel Corporation

Driver Version:                                                                 6.14.10.5218

Driver Date:                                                                    13-Jan-2010

DeviceInstanceId                                                                PCI\\VEN_8086&DEV_2A02&SUBSYS_20B517AA&REV_0C\\3&B1BFB68&0&10

Also DirectX 9.0c DirectDraw and Direct3D acceleration test  is OK.

Is there any other direction should I search?