We have a CS4 problem, when we try and save a image as a jpeg, it saves as a PSD (this is after selecting jpeg and hit save, no error messages, but when you go back to where it is saved, and I have tried to save it in different places, e.g.my pictures, on a seperate harddrive etc.... it shows as a psd file, not a jpeg), I have checked it is 8bit and RGB, the bizarre thing is I have CS4 loaded on 3 laptops, but is is only happening on one of them, thinking it is a laptop issue maybe, but at a loss to what is could be.

Any ideas to what is causing it or how to fix it would be greatly appreciated.

Thanks