I am sure everyone here knows more about this program than I do, so I would heed their advice first.
But if all that fails, (as it has done for me in the past with the same problem,) then I would check for a driver problem. Either corrupted or conflicting drivers is the problem I have when this happens to me. And it happens to me A LOT.
It could be a conflict with a scanner driver, or some other USB device you are running on your computer. Start by COLD STARTING..(or crashing) your computer, by simply hitting the power button, and holding it until the computer goes off. Do not turn it off in the usual manner by using the start button in the bottom corner, or by using the restart steps you would normally do.
If you crash it, you will freeze the problem in the memory of the computer, and the computer will reset the problem device, thinking it was caused by the "crash", rather than saving the settings it is currently at, before it logged off normally.
It is also best if you pull the power cord in the back of the computer, when it is turned off, and hit the "power on button" one time as well. This will clear the mother board, and all of the rest of your computer from any retained ele charge, eliminating the chance of any thing being saved in the memory, even by accident.
Then just plug it back in, and start by unplugging all your USB devices, (except for your mouse and keyboard of course..if they are USB anyway)...then fire it back up.
Start Photoshop, and try the tool again, if it now works, you know you have a USB driver device problem, or conflict. IF SO, then just plug back in the USB devices you have unplugged, and test the tool after each one. IF it stops working again when you plug one of the devices back in to the USB port, you know then which specific device is causing the problem for you.
IN my case it was my Wacom Tablet. (Which I use ALL the time, and normally never had any problems with before.) Once I found what the cause was, I deleted the old drivers for the device, and uninstalled the software for the tablet. Then reinstalled it, THEN everything worked fine again.
I dont know WHY the drivers for the tablet corrupts from time to time, but it still does so, and when it happens, I have to repeat the above steps again. But at least I dont have to find out which one is causing the problems now. It is always the tablet, for ME anyway. But each computer is different, and yours could be caused by a scanner, a external hard drive, or who knows what. It becomes a matter of elimination is all.
Good luck with it..I know it drove me nuts for MONTHS. I tried all of the above fixes, and even a few others recommended to me. All with no luck, I am sorry to say. Hopefully one of their solutions will work out for you, and save you the trouble that I went though.
Gary~~*

mjlange19

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