Yes and don't forget to use "pseudo_full_screen" then you cannot tell the difference, except perhaps higher framerates.
Have you read through the setup guide that Adam put together? Everything you need for tooltips is near the end of that manual. Including a link to a version of pseudo full screen that has everything you need in it. It's all in easy to understand instructions as well. Hope this helps!
Or, at the risk of being a miserable old git, learn your cockpit like a real pilot. No tool tips in real life. Seriously, I use DX10 and have long since forgotten what a tool tip is. You DO get used to it.
Happy New Year.
I really appreciate the help I have received regarding dx10 onto his forum. But I need just a little more. I downloaded pseudo_full_screen and auto hot key. Tool tips work again and it improved frame rates. However I have one remaining problem now. FX10 keeps going to simulation paused. Any idea what in auto hot key and pseudo full screen would cause fsx10 to pause about every 20 seconds?...