Earlier this week, we posted an email from a frustrated Qwest customer who said he couldn’t download YouTube and other online videos at a speed equivalent to the Qwest service he was paying for. Qwest wrote to us, and spoke to the customer, and swore they were not interfering with any download rates. Instead, it looks like the problem is with OpenDNS, a free service that usually speeds up downloading, but that seems to have an issue when it comes to certain video streams.