Hi! I did as You said and here is the bt. It crashes at libxml2, which is 2.3.5 totally unmodified in my case. I looked at the source but immediately got lost. Is it enough to help ? With regards, Pavel Troller #0 0x40c6f980 in strcpy () from /lib/libc.so.6 #1 0x40e68b2c in __DTOR_END__ () from /opt/kde/lib/kde2/kio_help.so #2 0x40ec0c1e in xmlXPathCompOpEval (ctxt=0x833b118, op=0x833b1a0) at xpath.c:7021 #3 0x40ec110e in xmlXPathCompOpEval (ctxt=0x833b118, op=0x833b1c0) at xpath.c:7206 #4 0x40ec13cb in xmlXPathRunEval (ctxt=0x833b118) at xpath.c:7315 #5 0x40ec16a4 in xmlXPathCompiledEval (comp=0x833b148, ctx=0x83182c8) at xpath.c:7445 #6 0x40e48bca in xsltEvalVariable (ctxt=0x86105d8, elem=0x80887c8) at variables.c:265 #7 0x40e48e99 in xsltEvalGlobalVariables (ctxt=0x86105d8) at variables.c:356 #8 0x40e57ef4 in xsltApplyStylesheet (style=0x805fd28, doc=0x8312638, params=0xbfffdcf4) at transform.c:2538 #9 0x40e3eb44 in transform (pat=@0xbffff164, tss=@0xbffff16c) at xslt.cpp:94 #10 0x40e3dd76 in HelpProtocol::get (this=0xbffff370, url=@0xbffff1e0) at kio_help.cpp:236 #11 0x40229c35 in KIO::SlaveBase::dispatch (this=0xbffff370, command=67, data=@0xbffff2a4) at slavebase.cpp:723 #12 0x40226e0e in KIO::SlaveBase::dispatchLoop (this=0xbffff370) at slavebase.cpp:187 #13 0x40e3e426 in kdemain (argc=4, argv=0x8052cf8) at main.cpp:46 #14 0x804b709 in launch (argc=4, _name=0x805454c "kio_help", args=0x80545c2 "pt\021", cwd=0x0, envc=0, envs=0x0, tty=0x0) at kinit.cpp:326 #15 0x804c487 in handle_launcher_request (sock=6) at kinit.cpp:735 #16 0x804cc51 in handle_requests (waitForPid=0) at kinit.cpp:896 #17 0x804da06 in main (argc=2, argv=0xbffff87c, envp=0xbffff888) at kinit.cpp:1183 #18 0x40c32781 in __libc_start_main () from /lib/libc.so.6 >> Visit http://master.kde.org/mailman/listinfo/kde-devel#unsub to unsubscribe <<