You are probably fine, there are several email viruses out that come from other people's computers and spoof the destination address as the source. You can look at the email header and find out where it really came from though, and let that person know they have a virus *sigh*
Run linux people, it's pretty much virus free (I think there are 2 known viruses, ever?).
'96 MX-6 LS V6 M/T
ZE powered, OBD-I, M-Edition Wheels, Lots of Goodies...
'94 626 V6 LX M/T [R.I.P.]
'93 MX-6 ZE-V6 LS M/T [R.I.P.]
'93 MX-6 V6 LS A/T [R.I.P.]