I have a Cable connection (Roadrunner) I just did a speed test:
Your line speed:
37431.2 Kbps
4587.2 K bytes/sec
That all looks good.
I'm running the full version of Spysweeper, Ad-aware SE, and Norton Internet Security.
I did an Adware scan nothing out of the usual, no Spyware was found with Spysweeper, and I'm doing an Antivirus scan currently with no luck.
Any idea what is causing this?