First I would delete all your cookies and temo ineternet files. This looks like there might be a spyware issue. I would suggest you run a few different scans. A few links are in my profile. Then post a hijack this log for the secrity guys to take a look at.
Just a word of advice, stay away from Myspace.com if you don't know how to get rid of spyware/adware/malware. You will get no matter what you do, just a matter of being able to get rid of it.
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