editing problems with 1.6 and mac 10.4 intel

[Brian Kidd]

hello,

i am a long-time LyX user and big fan of the software. i recently  
upgraded to 1.6 and noticed a few strange editing problems.  cmd- 
return does not break the paragraph (nothing happens and LyX displays  
unknown function in the lower left) and holding down shift to  
highlight characters or words does not work. in fact, if i have  
something highlighted, holding shift and moving the cursor to add or  
remove a character from the highlight causes the entire highlighted  
section to become unhighlighted. one other odd thing is i get a small  
">" character on the right side of the cursor. this character appears  
when i'm moving the cursor with the right or left arrow keys or  
sometimes when i'm typing. it seems like a graphical glitch and is  
somewhat annoying. is this expected?

i'm running LyX on a mac 10.4 intel. previous versions of LyX worked  
great and didn't have these odd editing problems. the .bind document  
hasn't changed with the upgrade. are these issues expected there  
something else i can look at or is this a bug?

thanks,
-brian