I just installed Windows 7 on a unibody MacBook Pro running OS X 10.7.1 in VirtualBox 4.1.2. I noticed that right after installation, scrolling worked pretty smooth. However, after doing all the updates in Windows Update, it no longer works smoothly at all, it's very jumpy instead (and only works in increments, so when I try to scroll slowly, it does nothing, nothing, and then suddenly jumps a lot).
If it makes a difference, this was true in both 64-bit Windows and 32 (I tried both for other reasons).
Is there anything I can do to get it back? Scrolling kinda sucks the way it's working now.
Thanks!