Hi Tony!
I have just had a new higher speed connection to my Virgin Media broadband (30mb), thought it was something to do with that and my iMac. As you say, the print size is massive and full widescreeen. Easy to read, but weird.
On logging in, the 'first' or 'home' page seems normal, then when I select 'posts since last visit' or anything else, I get the widescreen effect. A bit of a surprise, but very easy on the eyes! Perhaps Dimitris will update us soon.
Yammas,
Martin.