can't transfer photos with photoshop installed

Hi,

So strange, I was not able to transfer any photos from the iPhone 4S to my Mac while I had PhotoShop Express installed on the phone. I plugged the phone in and could not see the picutes in Dropbox (have the camera download enabled), iPhoto, or Image Capture. I went into camera roll on the phone to make sure that they were still there and they were. I downloaded PhotoShop Express last night to try and help clean up one of the photos (which works nicely I might add) I deleted the app. Once deleted I reconnected the phone to the computer the photos were there to download. Has anyone seen this or is it just me?

Thanks

Patrick