I started with the latest All-in-One installer at LDraw.org. This installed the 32-bit version. Then I downloaded and ran the 64-bit beta installer. After your post, I just ran it again with the same result. I renamed LDView64 as LDView and renamed the 32-bit version LDView32. Right now my directory has 3 exe files: LDView (4.2.0.1), LDView64 (4.2.0.1) and LDView32 (4.1.0.14). They all run fine. Only the screensaver doesn't work.
I am not trying to display car.dat. I changed it to another model in my own directory (which opens fine manually in LDView).
Note that I did not install LDView in the default location.
I am not trying to display car.dat. I changed it to another model in my own directory (which opens fine manually in LDView).
Note that I did not install LDView in the default location.