Installed Lazarus 1.4 over Lazarus 1.2.4 in the same path. When try to compile the blank default project, it shows the error message: "interfacebase.pp(30,58) Fatal: Cannot find LCLProc used by InterfaceBase, incompatible ppu=C:\lazarus\lcl\units\i386-win32\lclproc.ppu, package LCLBase".