Anytime my phone tries to do anything that might access the SD card, I get a notification that the car encountered an unexpected problem and was mounted as read-only. After a few searches, it seemed that unmounting and reformatting it might solve the problem. If that didn't help, erasing all phone data might fix the problem... Well, I wasn't able to unmount the SD card for some reason. That option wasn't ghosted out, but clicking on it didn't do anything. Eventually, I decided to just do the factory reset... then I did a phone storage format. After that I saw a tip that perhaps removing the card would help. What I did was remove it, booted the phone, and inserted it while it was on. This allowed me to unmount then format the SD card. The first thing I did was try to redownload some apps from the market. First on my list was google maps update. Immediately after clicking to download, i get the same notification that the SD card was mounted as read only as a result of an unexpected error. Given all this, is my card just junk after updating to froyo? Is there something else I can try?