I just toggled the ads off then on and measured no change in line spacing.
On Winders, hit Ctrl+(Numberpad +) to increase the font size, Ctrl+(Numberpad -) to decrease the font size if it bothers you.
Hmmmm Would that change everything I have up in Windows, or only the current page?
I may just turn the ads back on, only thing I didn't like about them up was they pushed my menu list tpretty far down. I don't have a very big screen, maybe 17 inch.