Apparently no patch yet. According to the following discussion the only solution at the moment is to install version 0.4.22:
I have 10.8 BTC on my MultiBit wallet. I want to transfer my BTC to my account at btc-e.com market. But MultiBit wants me to pay comisson 1 BTC for transaction. Even if I try to transfer 0.1 BTC.
- snip -
the issue solved by downgrade to version 0.4.22! 0.4.23 must have been buggy(((
Thanks fsb4000!
This was a bug to do with parsing of the transaction fee when you have a locale that uses a ',' as the decimal separator.
It is fixed in release 0.5.9 (
https://multibit.org/releases.html).
You can just set the transaction fee in the Preferences tab. Press 'Apply changes' to save the new amount.
- snip -
Still not fixed in 0.5.9 version.
It sounds like you either need to change your locale to somewhere that uses a '.' as the decimal separator, or you need to install 0.4.22