My hard drive at work crapped out on Tuesday, sonofab****

Got onto the oh so nice people at Dell, excellent customer service. Drive had more errors than a dyslexic at a spelling bee. Managed to get it booted up again though and got some stuff off it. Then Dell sent out a replacement drive, nice.

Learned a valuable lesson. The two most important locations to back up if you use Thunderbird and Firefox:

C:Documents and Settings\[User Name\]Application DataMozillaFirefoxProfiles

&

C:Documents and Settings\[User Name\]Application DataThunderbirdProfiles

Copied these back onto my newly restored system and with ten minutes I had all my e-mails and internet settings back up :-)