A few weeks ago all of a sudden the backspace, enter and direction keys
were not working. I updated Tinn-R to the newest version but still no
sollution. After this I tried reinstalling it (prior to that I removed
Tinn-R and deleted all the "leftovers" manually) and still no change. In
every other execution (e.g. when I save a file) every key works fine.
I've used Tinn-R with R on Win XP ever since I started with R, and I've
never had this problem. The only immediate thing that comes to mind is
that you should be installing R in SDI mode to get it working with Tinn-R.
At least that's what they say, and I've never tried it the other way
(MDI). Maybe just uninstall R and Tinn-R, then reload R, use Custom
installation and pick SDI, then reinstall Tinn-R. Worth a shot.
From what I have read in the other forums I believe this issue is not
necessarily R or Tinn-R related but might be some hidden Windows settings
(I'm using XP) but of this I'm not sure.
If that's the case, I can't help. What occurred "a few weeks ago" that
might have been related? Did you upgrade R?