Applying rules (I goofed)

Hi all,

I'm running Tiger, 10.4.11, with Mail Version 2.1.3 (753.1). I don't use rules very often, so I'm not very good at it. Today I went to add a rule to change the color of a specific persons incoming E-mails to yellow. I thought I did it correctly, it asked if I wanted to apply the rules to my in-box. I assumed it would then find and apply the color to the E-mails that I've already read from that person. I don't know what I did wrong, but now ALL of my E-mails are yellow. I opened my rules folder and there is not a rule in there stating that everything should be yellow. I've now changed the color of the E-mails from the person that I wanted to high-light to another color, and it works fine, but all of my incoming E-mails are still yellow. Can someone tell me how to get the mail system back to normal?

I use this forum from time to time and you guys are great. I know it must be an obvious fix, but since I don't use them that often, I'm lost. Please help...

cheers,

Jack