I've experienced the same random crashes, way too many to stay at 11.5. Rolling back tomorrow until this is resolved.
Clean install of XP Pro, with SP-2 ..
Last week updated the video drivers.. Did not help!
Two days ago I did a complete remove, including cleaning the registry of both VW 11.5 and Quicktime? and reinstalled off of supplied CD? VW 11.5 and QT 6.5.1..
Did not help!
Crash happens at simple moves, cut and paste, insert text? Always get the XP encountered error message. Maybe Nemetschek should build an error report into the application.
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Windows XP, SP2 VectorWorks/Industry Package
Asus P4P800 @ 1.8 Ghz
1 GB Memory
Matrox Millennium G450 w/dual monitors ~ Driver Version 5.92.6.0
My hard drive also starts activity just before VW quits. While this is happening there is a second or two pause before VW hangs.
Good luck on resolving the issues. Love the product. Been around since Ver. 8..