Sorry, the above post should have read:
Having seen another thread about PDFs, I went to opera://plugins
The Chrome PDF Viewer was marked as 'Enabled'
I disabled it.
So far, ..., since doing that, downloaded PDFs are opening fine.
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Download Opera browser with:
V 29.0.1795.60 Intermittent problem.
When I download a pdf, sometimes it will not open properly - I just get various lines or sometimes isolated text. Refresh makes no difference.
If I then go to, erm, Internet Explorer and open the PDF it renders fine. Having done that, if I then go back to Opera and try again, all is well and the PDF is correctly shown.
Any ideas what is wrong?