When updating a postscript preview, lyx does not send a SIGHUP to gv, and the ps is not re-loaded. The obvious workaround is to set the "watch file" preference in gv, or modify the lyx preferences adding the -watch argument to gv. Sending a SIGHUP would be ideal, but, unfortunately, ghostview does not handle it. However, it would be nice to add "-watch" to the default command line arguments of gv.
Regards, Marco Morandini
