Comment 2 for bug 996821

Just an update. I have been in touch with the developers of vmmouse. We've determined the issue occurred with commit 189dc266 ( http://cgit.freedesktop.org/xorg/driver/xf86-input-vmmouse/commit/?id=189dc266a66485d48303acbc1a4fbe4642c75e9f ). A very simple change. I've rebuild my 12.8 package with that commit reverted and it works great.

It seems this may only affect Windows 7 x64 hosts (and maybe more). The upstream devs could not reproduce on a Linux host.