I don't know if this also applies to other desktop editions of Linux Mint, but I'm running Mint 14 Xfce, so I'm speaking about that experience. When attempting to resize a window on the desktop, by mousing over the lower left or lower right corners of the window, there seems to be only a one or two-pixel range in which the mouse pointer changes so that I can drag and resize the window. This makes it really difficult and exacting to resize the window. This applies to the sides of the window as well. Interestingly, at the top left and right corners, there seems to be a bit more range in which the mouse pointer changes to the 'resize' mode, perhaps because of the rounded window corners on top.
Is there a way in Mint Xfce to make the windows more friendly to resizing, i.e. give more range to the mouse poiner when hovering over resizable parts of windows?