search for: 055212

...alid Window parameter) 8: X11 protocol error: BadWindow (invalid Window parameter) However, as soon as I do ls(), for example, the warning messages disappear and don't recur unless I re-execute the code. The archives turned up this thread (https://stat.ethz.ch/pipermail/r-help/2004-August/055212.html), which relates to RCMDr use, but I think is probably general. The thread doesn't look like it comes to a complete resolution. (I did one suggestion, remove the tkfocus call, and get the same result.) I am tempted to ignore the warnings entirely (being lazy when the code works), bu...