have NEVER adjusted the fee i years, it has always 'popped up when sending, 0.000X, being a single figure X being ?
Think i always been 0,0001 BTC ?
A fixed fee is a bad idea. The fee that is appropriate is mostly determined by two factors: 1. TX size (the size of your transaction); 2. The recommended fee-rate in satoshis/byte. For example:
TX size 300 bytes with recommended fee of 10 satoshis/byte (example) would require a fee of ~3 000 satoshis.
TX size 300 bytes with a recommended fee of 120 satoshis/byte (current) would require a fee of ~36 000 satoshis.
You should look into Multibit settings and adjust them so that the wallet includes higher fees.
Cheers mate i've sent way over that over the amount in the past years and never had this,,,,,,i will have a look in preferences or simialer.