hi ,
i have dL latest QT version , but still showing warning msg transaction could be wrong...
can someone help plz?
have you deleted all files in %appdata%\leafcoin except wallet.dat? ( qt must be closed before you remove )
make sure you backup wallet first ( using file menu in qt AND by copying from %appdata%\leafcoin folder while client qt is closed )
when you deleted all files... start new version.
it will resync and should work.