One of the first things I do after a fresh install is to tweak the window manager settings. You can change setting for "Key used to grab and move windows" to "none" on the accessibility tab of the "window manager tweaks" located under "settings" in the main menu. This should allow you to drag the window anywhere you want. I don't know a permanent solution but maybe this will help until someone else can get you one.
“I have not failed. I’ve just found 10,000 ways that won’t work.” - Thomas Edison