I have replaced a laptop and a desktop machine. I have loaded Photoshop CS5 on both. I try to update CS5 and I get to about 97 percent of the download and then the download/installation stops and I get a message saying there was an error. How do I ge

I have replaced a laptop and a desktop machine. I have loaded Photoshop CS5 on both. I try to update CS5 and I get to about 97 percent of the download and then the download/installation stops and I get a message saying there was an error. How do I get the upates?