It's been a while since I've used GoDaddy so my information may be out of date, but I don't believe GoDaddy's hosting services meet the general requirements for Dolphin.

Your best bet is to contact GoDaddy support & have them go through the requirements listed at the URL below & insure that they meet them. If they do, then ask them to have a look & see if they can figure out what the problem is.

http://www.boonex.com/trac/dolphin/wiki/DolTech