Hello ess esses, In SuSE 8.1, R 1.62 and Xemacs 21.4 and Ess 5.1.24 I use system(acroread afile.pdf, intern = FALSE) the file opens up OK but further activity in R is locked. I would like to have the file on the desktop and change between the pdf document and Xemacs what to do? Fredrik Lundgren