I have a problem with combinig Opera and Gmail. I have been using Opera for a few years now and this problem was present at the begining, then dissapeared and now it is back for me

OK, the problem is: I start a new letter / mail in Gmail (standard or basic HTML don't make a difference), write a letter as usual and if I want to add more than one file I have to add one by one. Well it isn't a problem for me, I can just .rar them up and send them files, but more of my coleagues aren't so "skilled" in usnig computers, and I have to explain the procedure over to them, which takes a while.

Can you tell me what to change in Opera to get back to the "multiselect" method?

Thanks.