I really need help. I just updated both my 68K Mac and PPC Mac from 4.1.8 to 5.0.1r2. I thought it would be best to update my applications to the new version. I have several applications that where written under 4.1.8 and saved as System 7 Runtime Version applications. They worked fine and when I double click on them, they run. No problem. I installed 5.0.1r2 and moved 4.1.8 to the trash (did not empty trash, made sure MacPerl was closed). On both systems I selected the "Install Perl for this Mac" option. I then launched MacPerl (5.0.1r2) and opened one of my applications, I then did a SAVE and exited MacPerl. I double clicked on the application and nothing happened - as far as running the application that is. The menu bar changed to a MacPerl manu bar but that was it - the script did not run. I noticed that the icon for the application was no longer the generic application icon (paper with hand holding pencil), but was the Perl Icon (Pyramid with camel). What have I done wrong? I tried starting from scratch. Closed everything. Launched MacPerl 5.0.1r2 and picked MENU|NEW. Typed: print "hello, world"; Selected MENU|SAVE AS|RUNTIME VERSION named "test". Exited MacPerl. Double clicked "test" icon. Same result - MacPerl menu bar, no application executed. Please help! TIA, Scott Weaver sweaver@bluenova.com