HKUS/Internet Explorer Spybot Results...Do I have a virus?

Please help!
For the past month or so I have had a suspicion that my laptop may be infected with some type of virus/malware. I have Symantec Endpoint Protection and it comes up CLEAR every time I run scans, but when I use Spybot Search & Destroy 2.1, I always get anywhere from 10-15 results. One that especially stands out is all the results involving Internet Explorer, because I never use IE, nor can I even find Internet Explorer anywhere on my laptop (I primarily use Firefox and Google Chrome). Attached are my most recent scan results. I have also seen "Registry Changes" come up in Spybot scans in the past, so I have attached that older result as well.

Thank you in advance for any help! I appreciate your time.

Not to worry,the results in both logfiles all look to just be tracks:
http://www.safer-networking.org/faq/usage-tracks/