Even with the "Default connection mode" set to "Mass storage," I don't see my SD card or the LG Revolution's internal storage in the Windows 7 Ultimate 64-bit's "Computer" display along with the other disk volumes.
Additionally. my LG Revolution doesn't show up on the Verizon Wireless Software Upgrade Assistant that it installed by itself!
My LG Revolution charges fine via USB btw.
Biggeek, thanks for your inquiry! Follow these instructions to make sure USB Mass Storage is enabled when connected to the computer. If it is already selected, try changing it to Charge only and back to USB Mass Storage. What drives do you see in your Windows Explorer?