diff --git a/src/main.cpp b/src/main.cpp
index 699bee2d..594f1d3b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -32,8 +32,8 @@ map<COutPoint, CInPoint> mapNextTx;
 map<uint256, CBlockIndex*> mapBlockIndex;
 uint256 hashGenesisBlock("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f");
 CBigNum bnProofOfWorkLimit(~uint256(0) >> 32);
-const int nTotalBlocksEstimate = 131000; // Conservative estimate of total nr of blocks on main chain
-const int nInitialBlockThreshold = 10000; // Regard blocks up until N-threshold as "initial download"
+const int nTotalBlocksEstimate = 134444; // Conservative estimate of total nr of blocks on main chain
+const int nInitialBlockThreshold = 120; // Regard blocks up until N-threshold as "initial download"
 CBlockIndex* pindexGenesisBlock = NULL;
 int nBestHeight = -1;
 CBigNum bnBestChainWork = 0;
@@ -1294,7 +1294,8 @@ bool CBlock::AcceptBlock()
             (nHeight ==  70567 && hash != uint256("0x00000000006a49b14bcf27462068f1264c961f11fa2e0eddd2be0791e1d4124a")) ||
             (nHeight ==  74000 && hash != uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20")) ||
             (nHeight == 105000 && hash != uint256("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97")) ||
-            (nHeight == 118000 && hash != uint256("0x000000000000774a7f8a7a12dc906ddb9e17e75d684f15e00f8767f9e8f36553")))
+            (nHeight == 118000 && hash != uint256("0x000000000000774a7f8a7a12dc906ddb9e17e75d684f15e00f8767f9e8f36553")) ||
+            (nHeight == 134444 && hash != uint256("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe")))
             return error("AcceptBlock() : rejected by checkpoint lockin at %d", nHeight);
 
     // Write block to history file
@@ -1311,7 +1312,7 @@ bool CBlock::AcceptBlock()
     if (hashBestChain == hash)
         CRITICAL_BLOCK(cs_vNodes)
             BOOST_FOREACH(CNode* pnode, vNodes)
-                if (nBestHeight > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : 118000))
+                if (nBestHeight > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : 134444))
                     pnode->PushInventory(CInv(MSG_BLOCK, hash));
 
     return true;