Michael Yep wrote:
Sorry I do not know what top posting is. I run Thunderbird 1.5.0.4, and this is the default setup with a signature. I this the incorrect format ?
Assuming Thunderbird under Linux (don't know about the Windows version), click Edit->Account Settings. Under the relevant account, click Composition & Addressing. Uncheck "Compose messages in HTML format", and check "Automatically quote the original message when replying" and select "Then, start my reply below the quote". That should fix you up.