I am running LDC 2009 on an XP 64 bit machine that also has Raster Design on C3D2010. My LDC keeps crashing and so does the other 2 heavy users. When I go to Change or Remove Programs and check the show updates box, AutoCAD 2010 and C3D both show version 3. LDC does not show a version which makes me think that the service pack was not installed. However IT says that the company they used to install the software did install the service pack. I am at a loss. Until we get training in Civil 3D (coming soon), we need to use LDC. And it is crashing so much that I consider it unusable.
Melody