Hi, Whenever I try to compile an app that uses Qt, I get this error from the compiler: Unresolved symbol __pure_virtual My system is Slackware 3.5 with the egcs package removed and the gcc 2.7.2.3 package from Slackware 3.4 used instead. I have Qt 1.40 which was compiled with 2.7.2.3 also. Can someone enlighten me? Regards, Koby Kahane kobyk@bigfoot.com