Dell MediaDirect suddenly reappeared, messed with partitions

[AlmightyDoerOfStuff]

I'm using a Dell Inspiron E1505 laptop, which I've had since the end of 2006. When I installed Ubuntu, I deleted all the partitions on my hard drive and started fresh, dualbooting WinXP and Ubuntu. As far as I know MediaDirect has been gone since then, because I deleted the partition. I've since added and deleted partitions, and am now running only Mint 11 on a single, 76GB partition with a 4GB swap partition. It's an 80GB drive, so that should be the whole thing.

But a couple nights ago, I realized late at night that my computer was still running. I got out of bed and opened it, and MediaDirect was there, saying it couldn't find NTLDR. Since then, the attached screenshot is what Disk Utility shows me.

Is this going to cause problems when I eventually upgrade to Mint 13? Why did it do that? I don't remember hitting the MediaDirect button, and even if I did, why would it mess with my partitions like that? Do you think I can just delete those partitions and hopefully it will go back to normal?