Every time I opened Thunderbird it asked me if I wanted it to be the default e-mail client. I would check the Don't Display This Annoying Message Ever Again (well it doesn't say that but...) and click YEEEEEEEES!
The next time I opened Thuderbird again, same inquiry...
What is the problem? I set it as default in Start --> Settings --> Control Panel --> Internet Options --> Programs Tab --> E-mail & Newsgroups, so what gives? That never changed, why doesn't Thuderbird get it?
- Right-Click on the Thuderbird shortcut
- Select Run As and open the application as Administrator
- When the question pops up, check the Don't Display Message... option and click Yes (or OK, whichever options sets it as default).
- Close Thunderbird
- Open Thunderbird again as yourself (not Admin)
If you don't get the same results... Well, I don't know what to tell you. Sorry.