My new wallet cannot sync, after 6 hours it says: Checkpoint is too old, wait for blockchain to download or notify developers.
Exit wallet, reload, it will start to sync again. Click Help > Debug Window and check the Current number of blocks. If it gets stuck, reload and try again. Finally got it synced.
-edit
weird tho, having a problem keeping wallet in sync. It's like when a new block is solved, wallet falls out of sync, fails to download new block and then has a hard time keeping up.
this is because the fork out there is still longer, will resolve eventually! this is normal behavior
and it appears the wallet has finally synced, and shows green check -
getmininginfo

{
"blocks" : 198229,
"currentblocksize" : 1000,
"currentblocktx" : 0,
"difficulty" : 0.27921929,
"errors" : "WARNING: Checkpoint is too old. Wait for block chain to download, or notify developers.",
"generate" : false,
"genproclimit" : -1,
"hashespersec" : 0,
"networkhashps" : 18225496,
"pooledtx" : 0,
"testnet" : false
}
i hope the sync will go fast, clean and ready here..