--- tvision/classes/dos/dosdis.cc~1	2004-08-11 21:02:30.000000000 +0300
+++ tvision/classes/dos/dosdis.cc	2005-01-06 18:09:58.000000000 +0200
@@ -167,7 +167,7 @@
    }
  AH=SET_TEXT_MODE_CURSOR_SHAPE;
  BH=GetPage();
- if (start>=end)
+ if (start>end || (start==0 && end==0))
     CX=0x2000;
  else
    {
--- tvision/include/compatlayer.h~1	2004-11-27 13:26:18.000000000 +0200
+++ tvision/include/compatlayer.h	2005-01-06 19:34:06.000000000 +0200
@@ -324,7 +324,7 @@
     library. GCC implemented it in version 3.0. BC++ implemented some
     stuff in versions like BC++ 5.5. So that's a real mess. */
  #if __GNUC__>=3
-  #if __GNUC_MINOR__>=4
+  #if __GNUC_MINOR__>=4 || __GNUC__>=4
    // gcc 3.4. It have __gnu_cxx::stdio_filebuf class.
    #define CLY_filebuf       __gnu_cxx::stdio_filebuf<char>
    #define CLY_int_filebuf   CLY_filebuf