I have a problem buddies, this was a black theme that I've downloaded from Web, I changed the operator logo and put an Aston Martin Logo, and then I made a wallpaper in 174 x 144 resolution for my phone, when I view the picture from the Gallery, I can see the picture sharper, but when i set it as a wallpaper, the picture becomes blurry :( what should I do to make the wallpaper as sharp as the picture that I see in my gallery on the phone, I use a black N72..here you can see the difference:

http://img238.imageshack.us/img238/954/fescr001dc0.jpg (http://imageshack.us)http://img15.imagevenue.com/loc332/th_30583_FEscr002_332lo.jpg

It's the very well known issue. Try to set the wallpaper using Resco Photo Viewer app.

To make the picture sharp, you need to make it 174x142 in size. I had this problem on my N70 until I realized that on the edges of the screen are two narrow lines of 1 pixel each.