Opera 7.54u2 > http://www.opera.com/download/
Opera 8.0b1 > http://www.opera.com/download/?ver=8.0b1

I’m wondering where he got 7.6 beta from since that is a rather old beta version.
And is officially not available for download anymore.

EDIT:
I am running Opera 8.0b1 (registered) and can’t reproduce the problem.