ya i think so.. and in case people don't know how to delete that file..

open any folder in windows and type in %appdata% (hit enter)
then open the JackpotCoin folder and delete the file blkindex.dat
i made sure my wallet was shutdown / off then i renamed that file..
it took a while to re-sync the block chain all over again but it seems to be working fine now.

just make sure you don't delete any file that has the .dat extension !
The default file name wallet.dat is your wallet data storage that holds the Private Keys.
SO if you lose that file any coins you have in your wallet are gone forever !
Occasionally i like to back up all of it to a USB drive for safe keeping.

@OP / DEV man
Thanks for the reply and again for the update