Blurry pictures even through the viewfinder window. I've changed settings and nothing seems to work.

If all seems to work as usual : the lens extends normally, no unusuall sound...

Then It might be that you are in Macro mode.
Try to check with something really close to the lens, only a few inches.
If this is in focus, then you have to find the macro setting and unselect it.

Hope this will help.

Maybe its on manual focus. take the batteries out and reinsert them

put it on the green auto program. If that still doenst help the auto focus is damaged

You can also bring it to a photo dealer and ask them how much it is woth if you trade it in. The will discover the issue and tell whats wrong

for free :) as long as you dont let yourself lure of course

good luck

rene