[R-SIG-Mac] R.app appending newline at end of command

[Gad Abraham]

Hi,

Recently, R.app (2.7.2 on Leopard 10.5.4) has begun to append newlines 
at the end of commands, so that if I press the up key, the newline gets 
reproduced again. I've been running 2.7.2 since it came out but this 
behaviour is recent (past couple of days):

 > ls()
character(0)
[press up and enter]
 > ls()
character(0)
 >
[press up and enter]
 > ls()
character(0)
 >
 >
[press up and enter]
 > ls()
character(0)
 >
 >
 >


 > sessionInfo()
R version 2.7.2 (2008-08-25)
i386-apple-darwin8.11.1

locale:
en_AU.UTF-8/en_AU.UTF-8/C/C/en_AU.UTF-8/en_AU.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base


Any idea what could be causing this?

Thanks,
Gad

-- 
Gad Abraham
Dept. CSSE and NICTA
The University of Melbourne
Parkville 3010, Victoria, Australia
email: gabraham at csse.unimelb.edu.au
web: http://www.csse.unimelb.edu.au/~gabraham