Making GIF Wallpapers fit Screen

Hey i found a couple of 240 x 400 gif wallpapers for the impression, but when i set them as my wallpaper, they appeared as a little rectangle in the middle of the screen. All of my gif pictures show up as this when i set them, even the default animated pic (the one with the thunder), which originally worked until i changed it. My normal wallpapers work fine, it is just the gifs. Am i missing something simple here, or is that just how gifs appear as a wallpaper?

Ok here are some that im trying to make work.

Yeah im using a usb cable and the New PC Studio software to drag them from my computer onto the pictures folder. When i first got the phone the thunder gif was the wallpaper and it fit perfectly. Then i changed it to a normal wallpaper. Later when i changed it back to that thunder gif it started appearing as a little rectangle. Now i tried downloading these gifs as well and they all do the same only normal pics fit screen. I am not sure what mass storage mode means.

Ok i did exactly what you said. I downloaded a new batch of wallpapers that i found around these forums. 2 regular jps pics, and 3 gif pics. I put the phone in media player mode and moved them all into the picture folder. First i tried the jpg pics and they worked perfectly, fit the screen fine and everything which gave me hope. Then i tried the gif and the image showed up as a little rectangle in the middle again. I dont know whats wrong, is it something with my settings ? Its funny because when i look at them under the pictures folder in my phone, they come up full screen and everything, once i click on set and go look at the home page, its i little rectangle instead of the full screen. Btw i apreciate the help Agoat.

i have had that problem before but i only get it when i turn the phone on with the keyboard out then i get a tiny picture in the middle of the screen

i think its b/c the picture is set to fit horizontally when the keyboard is out and when you push the keybaord back in the gif stays the same b/c that is how it loaded the funny thing is i tried it with a normal jpg pic and it doesnt do it so must be something with gifs

lol i found that out by accident one morning and now i am glad i did find it