Why is this msg coming up?

Hi guys

Today I get this Msg when I right click on a image a drop down menu lists some options, the one I left click on is Send to Mail Recipient and a box appears with sending opitions like it has always has done...But then I get this (Either there is no default mail client or the current mail client cannot fulfill the messaging request..Please run Microsoft Outlook and set it as the default mail client.)

I have checked that Thunderbird is set as default like always and I'm not going to use Outlook...

Thanks guys:confused

 

Yes I do have it installed as part of the Microsoft Works package but have never used Outlook..

I have just done as suguested and all fixed thanks very much

 

Thanks again buddy