I've been using a GoDaddy reseller (NoMoreWebMasters.com) to register domain names with GoDaddy at a cheaper price than godaddy.com ($6.95 vs $9.99 for .com).
However, once I was logged in through the affiliate I couldn't change the DNS. When I clicked on "Total DNS Control and MX Records" to change my DNS I got the following error message:
The Total DNS Control Manager for this domain is temporarily unavailable. Please try back later.
After noticing this problem for several days I called GoDaddy. They told me it was a browser issue. While the rep had me on hold I googled the error message and I noticed some other people having the same, undetermined, problems.
I then noticed that the NoMoreWebMasters.com page was actually framing the GoDaddy affiliate page. Once I removed the GoDaddy page from inside the frame the problem went away.
I ran into this problem on OS X Leopard with Safari and Firefox 3.0. However, on Windows XP with Firefox, the NoMoreWebMasters.com page worked inside the frame and I could change the DNS. So, for some reason, framing a GoDaddy affiliate page doesn't work on the Mac.