1 Just in case copy paste your wallet.dat into another media => hard drive usb key etc...
2 Go to the Sprouts directory in appdata/roaming
3 Delete everything BUT your wallet.dat and the Sprouts.conf
4 relaunch the .exe
5 Profit
Ok, so, with your message, I realized that yesterday, I placed the .conf file in the same folder than the .exe file.
So, I copied it in the folder inside Roaming folder, deleted the rest of the content.... and then, Wallet STARTED to sinc IMMEDIATLY
YEAH !
Thanks for your support, greatly appreciated