Lately when I run SB S&D on my Mother's Windows XP computer (yes, we do use Firefox 2) we keep getting a pop-up that says there is an error in this file and other Trojan.sbi files:

There were problems in the include file C:\Program File\Spybot - Seach_Destroy\Includes\TrojansC.sbi
We've used Spybot (1.4) for a long time now and never got this message before, so I'm curious what prompted this and what can be done about it. Thank you for your time and help in this matter.