I am grateful for your tips, friends!
Being an addicted masochist I enjoyed my over night stay in the Phuket hospital where I was treated for extremely high blood pressure and mentally inflicted wiping and was released only after having gotten repeated professional psycho treatment how to deal with David U. mental pressure methods, I can now calmly say the following =
Yes, you are right, the problem is the size, 300kb and although Picasa has a function for down sizing when mailing the link to the left, it does not work.
The thumbnails are really too small, my photos deserve better than that, but even if I wanted, my Safari browsers does only show links to the 300kb photo.
Concerning uploading a different size, Picasa automatically re sizes the upload file as stipulated by me, e.i. smallest upload.
Pico
PS David = persistence will get you everywhere, I will break down , one day
))