I'm sure the exact same problem happened to me last night, basically the install goes great but once I go to log in, it submits my data, and then I get taken to a blank page, if I go to www.domain.com/admin nothing just blank, if I go to www.domain.com/Security/login still nothing, I've tried "/db/build?flush=1" and nothing either. I thought maybe I should try using MySQL v4.1 since it wasn't working with version v5 but it led me to the same results. During the installations I got all "green lights" on all my settings, so I'm not sure what the problem is. I have installed dozens of other CMSs, Blogs, and Wikis with no problems, not sure what I'm doing wrong here. I was even lucky enough to have one of my hosting provider's great tech guys try installing it too in between dealing with support calls and chats but it's doing the same for them too.
If anyone has any ideas please let us know, it appears we're not the only ones dealing with this.
Thanks in advance.