Couple of problems with CS4

T
Posted By
Tang
Dec 29, 2008
Views
302
Replies
1
Status
Closed
First, less pressing issue
When I try to open PNG files, I get an error message saying "Could not complete your request because the file-format module cannot parse the file." Saving PNGs doesn’t work either. I can do it with Save for Web, but I still can’t open those. I really have no idea what’s up with this.

Second problem is a bit of a mess. Randomly while I am working in CS4 the pressure sensitivity will stop working. When this happens I won’t be able to save because of a "disk error." I’m unable to otherwise access any files (open, save as, etc); when I try to open something the dialog tells me it can’t find the directories, so I can’t even browse. If I go to the Performance page under Preferences, I find that the scratch disks field is now empty. When I exit the preferences can’t be saved either. At this point, GPU enhancements still work.
Recently I found a sort of workaround, but now is when it gets weird. When I change my monitor configuration (switch from two to three monitors using Ultramon), this will correct the problem and allow me to save and restart Photoshop. If I switch back to three monitors without restarting Photoshop, the problem comes back immediately. Doing this also temporarily disables GPU enhancements, but I don’t know if that’s relevant.
This works, but it’s still irritating being consistently interrupted while working. Any insights?

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PZ
Ping Zheng
Dec 29, 2008
Maybe there is something wrong with the PNG plug-in, you can reinstall Photoshop and try it again. Could you please send me some files you can’t open to help me track this?

How to Master Sharpening in Photoshop

Give your photos a professional finish with sharpening in Photoshop. Learn to enhance details, create contrast, and prepare your images for print, web, and social media.

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