This same "random selection" can occur with other tools, such as Zoom (a single mouse click will zoom to a random magnification, just as if I made a selection).
My video driver is current (Nvidia 8600GT, OpenGL compatible), and I've swapped the mouse (and associated driver) with no improvement. I'm running Vista (32-bit) on a fairly new PC (9 months old) with 4GB RAM and fast (RAID0) drives. Photoshop CS3 (from which I upgraded to CS4 but left installed) doesn't exhibit this bug. (BTW, I'm an experienced Photoshop user, going all the way back to PS 3.0)
In that case, you might want to check your system for any setting or utility
that might interfere with mouse clicks/motion
Quite a tall order. Any suggestions as to where to begin? I've wondered whether the problem I'm having with my Wacom tablet/pen in CS4 and in LR2 might be some misinterpretation of tap/clicks but with hundreds of apps on the machine I don't know where to start looking. Then again CS4 and LR2 are the only ones misbehaving. CS3, LR1, Capture NX2, Silkypix, Office and the browsers etc have no trouble.
I get this also. Sometimes it goes away but it happens. In fact if I
put my mouse near guides and transform edges i have to move it off a
specific distance before it changes the mouse pointer. ... But...
when i bought this yesterday, it didn't happen. Something changed
when I started using it.
I'm reinstalling my mouse driver... Will let you know if that helps.
try UNinstalling all mouse drivers and let the os handle it. and check the mouse settings in the control panel.
Dell Studio 17 laptop with Radeon HD 3650 video card
Mark, i don't think it hasn't got anything to do with your mouse, we (web designers for a publishing company) are experincing the same thing. that's how we found this thread after, doing a such for the same bug. I'm sure the more and more users buy the product the more posts will appear on the net.
Out of interest we're running x64 machines, what bit you running?
I believe the best fix I did was to open the NVIDIA control panel and set it to performance mode. The problem had decreased slightly before that, and hasn't happened a single time since I made that change.
Give it a try, let me know if it helps...
-MC
Video: <http://digitalmighty.com/random/PSD-CS4-Problem.swf>
I'm curious about NVIDIA settings and how to adjust them. I'm baffled by the options since I know nothing about graphics cards and the like- I just want my CS4 to work properly.
If you go into Control Panels there's an NVIDIA control panel. Under 3d Settings > Adjust Image Settings with Preview, drag the selector from Quality toward Performance. Mine is set in the middle. This seemed to fix the problem for me. But again, if you need to adjust your settings further, Hugh Hansard in the other thread I mentioned in a previous post gave a lot more specific directions.
-MC
I would start by making sure you have the most recent Adobe updates installed and then checking to make sure you have the most recent driver installed for your video card. Maybe try turning off OpenGL and see if that helps.
Sorry I don't have any more specific info from my own horrible experience with this problem.