Roel
thanks anyway.
no frames involved - totally vanilla use of the calendar. Checked the CSS shown in the style editor of Firefox webdev on both machines and they look identical (174 rules shown). I'll just have to fire up the other pc when I need to print!
Phil

Hi Roel
I've restarted the PC (Win 10) cleared the browser cache tried ctl F5 on the upcoming events page none of which has changed anything. The good news from your point of view is that I have tried another PC with the same printer and it works fine!!
Any suggestions about fixing the problem would however be appreciated.
Phil

After installing the latest version 4.6.0M I am having problems printing the upcoming events report. Using Firefox I get an enormous font and the two page report comes out as 15 pages - rather unreadable! Using Edge I get the normal sized text but I can only get the first page of the report. This report worked properly with the previous release and I haven't changed the Firefox version.   
Help please as it's the one print out we use regularly

Phil