Like the title says, 32GB current-gen iPod Touch upgraded to iOS4. Seems to run perfectly, except for trying to load PDFs in Safari, which immediately causes Safari to crash (drops me back to the home screen). It's 100% repeatable, and every PDF does this, including ones at apple.com. (It's particularly annoying when Safari tries to automatically re-open the last item, which of course results in another crash unless I can tap the cancel loading button very quickly.) Google came up with nothing, but I figured it wouldn't hurt to ask for any suggestions before I do a full wipe-and-restore.