Modules Install

Okay can someone explain to me why the modules install has not been worked on? Still same thing over and over. I did a fresh install of D7RC4 and when I try to install modules, some of them do not install. Okay I think I remember someone sayiong some modules have to be installed before others, and so I reinstall the remaining modules and this is what I get:

But below it shows this as the only remaining module to install:

Any responses?...Besides the usual nasty responses this site can give someone searching for help.

click on the icon next to it          it will show the results why

Every time that happened to me, refreshing the page, installed the rest of the modules.

Some Modules rely on other modules. If you try to install them all together the ones that need the other will fail the first time as the dbase hadn't registered as installed. As mentioned, read the + it will say "requires blah blah"

A second pass will install as you just installed the "Parent" Module