MacBook Pro takes forever to boot!!!

[iJesus]

My MacBook pro takes forever to boot!
It's stuck at the apple logo boot screen with the loading wheel for what seems forever.
And I don't get past the logon screen.

The guys at the Apple Store told me to do a archive and install so I did that; still, it doesn't work.

What should I do?

I JUST had the hard drive replaced (like less than 2 weeks ago)

 

[Eddyisgreat]

Possible Solutions/Issues:

Clear the PRam

Faulty Ram (Diagnose with Built in Hardware Test/ Hold "D" key at startup)

enable verbose mode and see what is hanging things up

Try those.

 

[iJesus]

Possible Solutions/Issues:

Clear the PRam

Faulty Ram (Diagnose with Built in Hardware Test/ Hold "D" key at startup)

enable verbose mode and see what is hanging things up

Try those.

I did the hardware test (both the short and long one) and it said everything was O.K.

I reset the PRAM and nothing happened.

I tried Verbose mode but I don't know how to read the information in order to see what the problem is.

Yuck =(

EDIT: Now it's giving me the whole circle with a strike thing.