Could not complete your request because the file-format module cannot parse the file

Ever since I installed Photoshop CS3 a year ago, this error happens every time I attempt to open or save a file as PNG, BMP, GIF, or anything that isn´t JPG, I can only open them for some seconds after PS has started, meaning I need to close it and reopen it over again and again, which is seriously starting to frustate me.

I tried reinstalling CS3 before, but it had the same problem, and I lost the install program, so yeah. Alternatively, when I had CS2 this problem never happened to me.

So, any ideas KHV?

 

Google showed up some results, but no particular solution. I saw this...
http://forums.xbox-scene.com/index.php?showtopic=590464 (6th post)
I saw this...
http://forums.adobe.com/thread/375393
(2nd post and last post- 2 solutions)
And also I saw that a reinstall-repair would do the trick.

 

So I decided to install CS4, and everything goes right up to now with PNG files, it seems the problem was only of CS3.

So yeah, staff can close this.