I've seen several discussions of problems pasting from BW7 to various applications. Here's my try:
Has anyone been able to directly copy/paste Unicode Greek or Hebrew from BW7 to OneNote?
It works if I copy from BW to OpenOffice Writer and then from OOW to OneNote. I suspect the problem may have to do with what BW puts on the clipboard. Although OOW recognizes the text as Unicode, neither OneNote, the Windows Clipbook Viewer (Clipbrd.exe), or ClipX (a third-party clipboard manager) see the Unicode text correctly.
I've attached two screenshots showing what the Windows viewer sees when copied from BW7 (first) and from OpenOffice (second).
(I have Export Fonts activated, Gk: Palatono Linotype/Unicode, Hebrew: SBL Hebrew/Unicode)