REMOVING UNWANTED WALLPAPERS FROM iPHONE 3G VER 2.2.1

[Judex]

I browsed the Walpapers Folder and I intoduced new ones with the extension .png. All worked fine. then, I decided to remove some of the original Wallpapers that I did not want.

Then, my iPhone cannot reboot. The white Apple remains on the screen always. It is not recognized by Itnes or by the Browser.

I cannot switch it off either !

Can Someone help ? How can I reboot my iPhone ? If this is possible, I will insert back the wallpapers in the Wallpapers Folder.

Thanks to help.

Cheers,
Judex.