Hi everyone, I normally include a call to browser() as I'm working out the kinks in my scripts, and I am always able to step through each line by hitting "Return", but for some reason, in the scripts I'm working on now, hitting "Return" seems to cause execution of *all* the lines in my script. I've restarted R several times in case it was stuck in a bad state for some reason, but I'm consistently getting this behavior anyway. Has anyone run into this problem before? Maybe I inadvertently reset preferences? An example which produces this behavior is the following: file bugcheck.r: browser() a <- 1 b <- 2 > source("bugcheck.r") Called from: eval(expr, envir, enclos) Browse[1]> > > ls() [1] "a" "b" > a [1] 1 > b [1] 2 I'd be grateful for any help in resolving this! Thanks, David Romano [[alternative HTML version deleted]]