Pinch-to-zoom changed

[RolanddeP]

Hi, I have a HTC Google Nexus One. Suddenly the Pinch-to-Zoom function stopped working for my Gallery-pictures! It still works with some other apps like books, maps etc. The strange thing is that it works with a picture in "whatsapp" but as soon as I download that same picture in "Gallery" it won't zoom with Pinch-to-Zoom?! what is hapening? How can I fix this?!!