Blender 2.61 mouse behavior change - help!

In blender 2.49b - when clicking on an arrow on the 3d manipulater widget ( the thing with 3 colored axis arrows ) the mouscurser got captured by the arrow and I could release the mouse button - not immediately applying the change. Now in 2.61 the mouse isn’t being captured and I have to keep pressing the mousebutton to apply change. This is so messing with my editing routine, especially with proportional editing.

Could anyone please tell me how I can change that behavior back to how it was in 2.49b?