Hi Guys, a short intro. In the 70's I used a large mainframe with punchcards a few time for class projects. I graduated with a worthless degree so in the 80's went back to school where I used a Commodore and an Apple, liked the Apple. When I went to work they were using IBMs with DOS, I asked the IT manager why don't we use Apple? "Because there are 10 time more programs with IBM."- End of Conversation. So after years of using Windows I got a iMac r5K, why?, not sure, just felt right. I do CAD work so I still need Windows, here are a few questions- - I've read some people here saying don't bother with anti-virus, but I'm using Windows with Parallels so should I definitely install something? One person said that with Mac no need, just don't visit shaky sites, impossible! - I sure wish I could lower the screen. I notice that bar seems to be made of metal, can you successfully apply pressure and bring the screen lower? - Sure wish there was a Split Vertical or similar command in Yosemite to quickly bring order to the windows on the screen, anything like that? I'll probably have more questions, I appreciate your help. This is a great forum, lots of activity.