Unusual MacBook behavior – is it a problem?

2 weeks old. MacBook Leopard OS X. 2ghz processer (49 processes running). 2G RAM. 13.3" screen.

This afternoon, i started up my macbook and the usual gray screen came up, but the screen was a bit weird looking, and an un-usuall loading stick appeared that the bottom (along with the round loading cicle). It was able to bypass this to the logon screen. So i was worried, and i restarted it. It started nomally...and it works fine.
I am a little bit worried however, that it did this.

Any advice? or problems leading to my screen? Anything would be greatly appreciated.

Thanks in advance.