I had a look at these issues this morning and found the following :
Chrome seems to be working just fine. I was worried when the latest canary build of chrome shows the crashed page screen, but it also shows it without WindowBlinds, so I can only assume they broke something. Note that we do not support anyone using alpha software for obvious reasons.
IE and Wordpad are as you say fine.
Minecraft was being auto ignored due to the use of OpenGL. This usually means a fullscreen game so we abort in that case, but you can set WB to override this. Unfortunately being a Java app it doesn't have its own exe name, so we have modified it so WB will not auto exclude for OpenGL if the app is Java.
VirtualBox was a case of the process not being able to find our dll, but a small tweak has been made to provide a full path. I cannot say why it and only it would be picky especially as the dll in question is in the OS system32 directory and thus should be in the path at all times.
Kaspersky total security appears to block us either by design or a due to some side effect of how they have implemented things. I imagine this is a sandboxing system. On Windows 8 it will use OS titlebars, on Windows 7 you will have none.
PSI+ looks fine and skins just fine here.
Regarding your cpu usage, do you have DeskScapes installed? I ask as I know we have a report of similar with DeskScapes and a change was made for the next update of that, but I have never heard similar with WB and tests here did not show anything wrong.