iphoto hangs

I am running 10.5.8 and its been fine on my mac book for the last year or so.
All of a sudden now every time I try to open iphoto after a few seconds it hang with the colour wheel spinning all I can do is force quite. Any help would be greatly appreciated. Thanks Hugh

Some specs on your book will help model, year and processor along with how much ram
which could be the answer right there and how many things you have running at the same time.

Also, it would be worth knowing how much free space you have left on your hard drive.

Hi guys thanks for your replies yes My mac is a dual core 2 GHz intel running OSX 10.5.8
I have 2 GB1067 MHz DDR3 of ram bought around june 2009
The iphoto is 7.7 and the computer hangs if it the only program I open after start up.
I have enough space on the hard drive 10g or so
Any ideas??

10 GB free space on the hard disk is not good enough.
Can you free up more space ... like 15% of your total disk capacity ?
( Make sure you have a backup before you start deleting stuff )

Cheers ... McBie

+1 on the free space. Ten gig left is not enough breathing room for your Mac to run the way it was intended.