[Katryna Sleptzoff]

I would go with this as the most likely problem as well. Check your task manager and see if there is a program using up a lot of your ram….8gb should be more than enough for photoshop. I’ve personally been using my 10 year old dell computer up until very recently when I upgraded and it worked fine in photoshop.

You can also allocate the amount of memory photoshop uses as well, in your preferences, under “performance”. Check that and see if allocating more memory helps. There are also some more advanced options for graphics processing as well, but you’d be better off googling it since I don’t know as much about it.

But like Dominic said, wouldn’t be surprised if it wasn’t a hardware issue at all. A two year old computer should be just fine running ps, unless your projects are ridiculously large, or you have other programs running in the background hogging up your memory.

Hope this helps!

[Katryna Sleptzoff]

Are you still having this problem?
I think I might know what it is, as I was having a similar problem with my wacom in photoshop as well. Are you sure it is tied with the cmd-opt-z? I ask because when it was happening to me it happened all the time, and it was really annoying. Looking back I am pretty sure the problem was that one of the side buttons on my pen was set to “alt”, so that I kept pushing/grazing it with my hand without realizing. Very annoying as my colors would often change in the middle of me painting. My memory isn’t the best though, so if thats not it, take a look and see if you have the touch gesture options on…I remember turning that off as well, so that might’ve been it.

Not sure if you’ve ran into this problem as well but I also found another issue with painting in photoshop w/ the default wacom settings is that there is a setting that basically allows you to longpress with your pen and have something pop up….quite annoying when trying to paint as the pen will stay pressed down for long bouts of time, so photoshop kept trying to pull up some sort of menu whenever I painted.

Anyways, I am getting off topic here, but try to see if it’s any of the settings on your pen/tablet first. Hopefully that works…if not, there might be some other things you can try as well.