increase the number of blocks to check at startup to force people to move to the right chain.

src/init.cpp

@@ -245,7 +245,7 @@ std::string HelpMessage()
     strUsage += "  -keypool=<n>           " + _("Set key pool size to <n> (default: 100)") + "\n";
     strUsage += "  -rescan                " + _("Rescan the block chain for missing wallet transactions") + "\n";
     strUsage += "  -salvagewallet         " + _("Attempt to recover private keys from a corrupt twisterwallet.dat") + "\n";
-    strUsage += "  -checkblocks=<n>       " + _("How many blocks to check at startup (default: 12, 0 = all)") + "\n";
+    strUsage += "  -checkblocks=<n>       " + _("How many blocks to check at startup (default: 120, 0 = all)") + "\n";
     strUsage += "  -checklevel=<n>        " + _("How thorough the block verification is (0-4, default: 3)") + "\n";
     strUsage += "  -txindex               " + _("Maintain a full transaction index (default: 0)") + "\n";
     strUsage += "  -loadblock=<file>      " + _("Imports blocks from external blk000??.dat file") + "\n";
@@ -755,7 +755,7 @@ bool AppInit2(boost::thread_group& threadGroup)
 
                 uiInterface.InitMessage(_("Verifying blocks..."));
                 if (!VerifyDB(GetArg("-checklevel", 3),
-                              GetArg( "-checkblocks", 12))) {
+                              GetArg( "-checkblocks", 120))) {
                     strLoadError = _("Corrupted block database detected");
                     break;
                 }