Please take note of the picture size rules ~ thank you.
If you right-click on images, this will give you the dimensions.Avatars
~ 'there is a hard upper limit of 320 pixels wide by 240 pixels high'.Signature images
~ 'MUST be under 200 pixels in height'.
This may seem trivial, but please remember that this concerns images which are repeated regularly and so take up quite a bit of the page. They are lovely to look at but must be kept within the regulation limits.