1234567890
Here is the sample, with mismatched < PRE > tags. In Opera 7.51, I see only "567890" in the top line - 4 characters get lost.
Sample code
<pre>
More sample code
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)