This is getting strange
Yes the 126692 is the correct chain (now is 126730). 128135 is the wrong one.
While we are working on adding new checkpoints that will make sure you are on the right chain, if you sync'ed to the wrong chain, you can do one of the 2 things:
(1). Sync from scratch, and use the addnodes from OP. In most case, this should bring you to the right blockchain. In some cases, this may not work. try (2) below.
(2). If you don't want to sync from scratch (it takes time to sync), you can download the blockchain here:
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Note this is a big file (about 90M). Exit your qt, unzip the file you downloaded, and copy database and txleveldb dir, and blk001.dat file to your conf dir, overwrite the old files. Please make sure before you do it, backup your old files (especially wallet.dat - though these files do not overwrite it, you should always backup your wallet file).
Using addnodes from OP, and open qt again, you should be syncing to the correct chain. If your wallet amount not correct, go to console (Help->debug Window->Console), and type repairwallet, you should be fine.
BTW, if you sync'ed to the right chain, and sometimes it says "downloading 1600 blocks and out of sync to 128xxx", it's fine, you are actually in sync, you can send tx etc, it won't go back to the wrong chain. The message should go away after a while and you go back to sync.