CB always result in thunderstorms with lightnings/thunder

[bpcw001 14]

Hi all,been an ASE user for quite some time and now jumped onto AS2012. I'm very satisfied so far.However, one thing has been bugging me since ASE:Why do CBs always produce lightning and thunder depictions, even if there is just "CB" in the METAR and no TS reported? This is especially annoying during winter time.I used to "fix" this by just renaming the appropriate .fx and sound files so that lightning and thunder roar would no longer be depicted, but this cannot be the right solution.What am I doing wrong?Thanks

[R Hardman 7]

Goto cloud options under WX options and ensure "Prevent Thunderstorms When CB Reported" is checked (Pg 61 of the manual).

[bpcw001 14]

Goto cloud options under WX options and ensure "Prevent Thunderstorms When CB Reported" is checked (Pg 61 of the manual).

Thanks. I've had this box checked ever since. It doesn't help in my case.