n beta available for Windows 64 http://www.jsoftware.com/download/j601nbeta_win64.exe
The default install configuration (and the eventual final release) is that x. y. u. v. m. n. are spelling errors. Use Edit|Configure|Parameters to allow x. y. etc. if required (or do 9!:49[1).
OpenGL is not supported in J64. There is no serious reason for the lack of support, but some work is required and Jsoftware has decided not to do it for 601.
The default install is to directory c:\j601_64 and the icons have 64 in their name. It is now easier for J32 and J64 installs to coexist.
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