I've been using the Thunderbird e-mail client for years on three different operating systems: XP, Vista, Windows 7.
On all of these operating systems, it has always had the problem of e.g. I'll be writing an e-mail and suddenly it will just freeze, I can't type, and 10 or 20 seconds later it will "come back" and I can type again. When I look at the task manager when it does this, the CPU spikes to 100% during these times and the guilty process is Thunderbird.
The problem is not always the same:
- on XP it started out fine and these black outs got longer and more frequent
- on my Vista installation it would happen only once every 20 mails
- now on a new installation of Windows 7, it happens almost every e-mail I type and often when I pull the scrollbar down it will freeze, "(Not Resonding)" will come up in the title bar, and I have to wait 20 seconds before I can use it again.
What could be causing this? Has anyone else had this problem with Thunderbird?