pb powering external USB2 hard drive

[bigjules]

Hi,

I'm on a VAIO-Z1SP, win XP pro SP2 and I've bought a LaCie 80 Go USB2 external hard drive (the little one, 2,5" size, with no external alimentation).
When I plug it on any of the 2 usb ports, I've an error message said that the host can't deliver enought power (something like that, I've this message in french
"Crête d'alimentation sur le port du concentrateur. Un préiphétique USB a dépassé les limites de l'alimentation de son port de concentrateur. Cliquez sur ce message pour blablabla..."
On this forum I've seen a post confirm that all the usb ports are not USB2... I'll try to put a screenshot off my peripheric manager.
Off course I've tried to put this disk on 5 other laptop and it works fine, just one time I had to put the secondary usb cable, wich is connected on the power port off the disk.
And one of this other laptops was a Sony VAIO Z1M, the HD works fine with it (don't need the 2nd cable).

I hope I was clear, and really hope someone could help me! Thanks a lot for reading me !

[bigjules]

Here it is :

That say "The peripheral can't start (Code 10). Clic on "Resolve" for start resolution..."

(sorry for the time to read and answer, I haven't find how to be in touch when someone post an answer here)