Just how *big* is that .png?

I have a screen-size of 1024*768 and ADSL at the
moment, and was interested to see the 'scan-lines'
of an image larger than my screen, begin to appear.

After 4 seconds the progress bar was no more than
quarter, so I abandonned it.

Please note that if you halve the (width/height)
of an image and drop the color depth to 16 (quite
sufficient for most technical uses) for PNG/GIF
or push the compression ratio way up for JPG,
you can easily  reduce the disk size of an image
by a factor of 10, though a ratio of 30-40 is
not impossible.

Hey.. *paint* a picture, it can sometimes explain
exactly what you need/is wrong, but make it *small*.