http://bugs.winehq.org/show_bug.cgi?id=5846
------- Additional Comments From hismoom@hotmail.com 2007-10-01 07:22 ------- This is a problem with C&C Generals. Under Windows (XP,Vista) with a desktop expanded to two monitors, the game also doesn't capture the mouse properly, so you have the same behaviour. Try using the cursor keys for scrolling, that's what I do when playing Generals (and I do that quite often).