Hi again, <div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Does this perhaps match your experience? I.e. if for instance you have a folder Desktop/testing, and in it a file ab.tex, and then another folder Desktop/testing2 and a file ab.tex there, do you still see the problem?</blockquote> Yep, completely unchanged. (There were no spaces in my original test cases, but I checked "parallel" directories with no spaces in the complete paths just to be sure.) Please pardon any repetition, but maybe it can help us get to the bottom of this: it looks to me like the root of the problem I'm seeing is in the "check_open" command, the output of which doesn't seem to depend on the location of the pdf file, but only its name. That is, consider the following sequence... [the file "fred.pdf" from "~/Desktop/testing" is open in TeXShop; it's the only thing open in TeXShop] % cd Desktop/testing % /Applications/TextMate.app/Contents/SharedSupport/Bundles/Latex.tmbundle/Support/bin/check_open TeXShop fred.pdf % [That is, it correctly reports that the file is open. Now just change dir and see if it thinks the other pdf file is open too...] % cd ../testing2 % /Applications/TextMate.app/Contents/SharedSupport/Bundles/Latex.tmbundle/Support/bin/check_open TeXShop fred.pdf % [Here's where I think the problem lies: check_open is again reporting that "fred.pdf" is open, but I'm betting that the command above should be referring to the "fred.pdf" in "testing2", not that from "testing".] In the command "runViewer" this causes control to pass to the refreshViewer command instead of invoking the "open -a ........." command that's required. Does this make any sense? Cheers, Paul </div>