diff --git a/main.cpp b/main.cpp
index 216e245d0..98317599e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1144,7 +1144,7 @@ bool CheckProofOfWork(uint256 hash, unsigned int nBits)
 
 bool IsInitialBlockDownload()
 {
-    if (pindexBest == NULL || (!fTestNet && nBestHeight < 74000))
+    if (pindexBest == NULL || (!fTestNet && nBestHeight < 105000))
         return true;
     static int64 nLastUpdate;
     static CBlockIndex* pindexLastBest;
@@ -1705,11 +1705,12 @@ bool CBlock::AcceptBlock()
 
     // Check that the block chain matches the known block chain up to a checkpoint
     if (!fTestNet)
-        if ((nHeight == 11111 && hash != uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d")) ||
-            (nHeight == 33333 && hash != uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6")) ||
-            (nHeight == 68555 && hash != uint256("0x00000000001e1b4903550a0b96e9a9405c8a95f387162e4944e8d9fbe501cd6a")) ||
-            (nHeight == 70567 && hash != uint256("0x00000000006a49b14bcf27462068f1264c961f11fa2e0eddd2be0791e1d4124a")) ||
-            (nHeight == 74000 && hash != uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20")))
+        if ((nHeight ==  11111 && hash != uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d")) ||
+            (nHeight ==  33333 && hash != uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6")) ||
+            (nHeight ==  68555 && hash != uint256("0x00000000001e1b4903550a0b96e9a9405c8a95f387162e4944e8d9fbe501cd6a")) ||
+            (nHeight ==  70567 && hash != uint256("0x00000000006a49b14bcf27462068f1264c961f11fa2e0eddd2be0791e1d4124a")) ||
+            (nHeight ==  74000 && hash != uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20")) ||
+            (nHeight == 105000 && hash != uint256("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97")))
             return error("AcceptBlock() : rejected by checkpoint lockin at %d", nHeight);
 
     // Write block to history file
@@ -1726,7 +1727,7 @@ bool CBlock::AcceptBlock()
     if (hashBestChain == hash)
         CRITICAL_BLOCK(cs_vNodes)
             foreach(CNode* pnode, vNodes)
-                if (nBestHeight > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : 55000))
+                if (nBestHeight > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : 105000))
                     pnode->PushInventory(CInv(MSG_BLOCK, hash));
 
     return true;