This discourages many marketers because they feel like there is no way they can convince anyone to buy something. It is not because they aren't good at making sales, it's just that they have picked the wrong products to promote, it is simply a wrong choice of venue to sell the affiliate marketing services. If you are marketing your affiliate offers from a website you own, you have to make sure you don't use frames.
This is such a bad mistake that many marketers email list make and why there are those that never find success in affiliate marketing, because if you have frames in your website then you will not show up in any search results because search engines do not index websites that use frames. Also, you need to get rid of all the useless graphics on your site. You don't actually need so much eye candy to get the attention of customer, you are most likely scaring them away.
Yelling sales words like "It's the GREATEST" or other meaningless promises do not mean anything to customer and turn people away from you business, even if you had good stuff to say to them. Instead, you should think about the stuff you would want to see if you are the customer. Make your websites content as if it were directed to a single person, this the key to your success in affiliate marketing.