I installed the update on BW900.exe, available today 21 March. (and probably earlier). After that BibleWorks 9 failed to run on Linux, that's Ubuntu 12.10. It kept crashing. I had an earlier BW900.exe from a backup, and restored it. After restore, BibleWorks works okay again on Linux.
The version that runs okay is 9.0.012v.1 (SH).
I cannot see the version that crashes, but it's newer.