I installed Windows 8 Release Preview on a VirtualBox VM, and it worked correctly. Then I installed the Guest Additions to get the correct resolutions.
Now, the Start screen is very slow, takes a long time to scroll and doesn't respond well to clicks.
I believe it's not my host, as it's a good machine (i7 CPU, 6 GB of RAM) and this specifically starts to happen after installing the Guest Additions.
The task manager doesn't show anything wrong (i.e. no processes pegging the CPU). Any suggestions?
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