fallon wrote:i think this 1280 x something...that's big enough for my 22'' wide screen...
Yes but your viewer software sould be able to auto rescle the image so that it fits.
Also just because your screen doesn't cope with that size doesn't mean other peoples screens don't. If we had to have images that worked with everones screen then some idiot would be limiting us all to 640x480 because they have not upgraded. Now 640x480 would be too small on your screen let alone mine (1680x1050).
However some sites offer the best solution which is a choice of 3 sizes 1000x , 2000x or 3000x that number representing the larger dimention.