I recently upgraded my HTC Evo 4g for a 4G LTE and am generally very pleased with the trade. the new phone is lighter, faster, and has better battery life. However, one of my favorite apps doesn't work. Documents to Go, which I use periodically to sync certain Office files between my PC and my phone won't connect with the LTE. Apparently the problem is that the App installs on the the phone's internal memory, which is designated as the SD card, while the PC desktop top looks for the phone App on the external SD card, which is now called ext_sd or sdcard2. Because of this issue, the PC and phone cannot connect and no file synchronizaiton is possible. DataViz, the creator of the App, apparently has no clue. Does anyone know how to solve this problem?