Quote Originally Posted by marksu View Post
Seems like for some reason the IH creates corrupted cache image files.

Where can I find the function that creates them, so I can debug?
Have you check your image files to see they are not corrupt?
What size are the images you are uploading?

IH doesn't create the image file, the server side software GD libraries or ImageMagick does.
Large image files can choke GD libraries or ImageMagick (sever times out) which will create corrupt files.

JPG and jpg can not be mixed.
Check your settings under Images.

M