A few months ago I installed Thunderbird onto a new PC having previously used it on a previous PC (so I'm not a newbie).. However I'm seeing a persistent issue that I never saw before... I've a regular contact whose name I won't specify but let's call him Roger Smith. What happens is that whenever I post something '''on a forum''' (such as this one) and somebody replies, the replies look as if they came from Roger Smith - even though he's got no connection with the actual forum. It doesn't happen with every forum - for example it doesn't happen with this one - but it does affect most of them. Has anyone else ever reported this and is there anything I can do to correct it?