Hey guys,
I know not many have this issue but if you are using a Wacom tablet with Lion or Mountain Lion and you experience input lag after pressing and express key, go here:
http://www.wacom.com/en/customercare/drivers.aspx
And download the 6.1.7-5 driver (yes its very old).
This fix worked for me and a few others. Note that this doesn’t happen only in ZBrush, it happens regardless of what program you use, its just the most crippling in ZBrush because of the extent the modifier keys are used.
If you have that problem and the fix works for you please post below and list what kind of tablet you have. I’m trying to get a list across several sites to send to Wacom.
My tablet is an Intuos 4 Wireless.