I have downloaded Adobe and QuickOffice to preview Gmail attachements. All will work well for a while untill I eventually start getting an Error Message - "An SD Card is required to download attachments" It is like it no longer recognizes the Internal SD Card. (Internal SD Card shows almost 13GB available space - I have not added an external SD Card) I am not trying to download - just preview. I have been through Samsung Tech Support 2 times and ended up having to do a Hard Reset both times. After the reset it works for a while untill I start getting the same Error Message again.There must ba a fix - short of having to repeatedly do Hard Resets??!! For what it's worth - I have had the Captivate from day one and have not experienced any of the other issues. Even Google GPS works great and I use it every day here in Houston. No Rooting, and I run stock applications. Hope someone can help because unfortunately this issue is a Captivate Killer for me. I work in magazine publishing and need to be able to preview graphic ads on the go.