Hello, First off, I really tried hard to figure this problem out by myself but after hours of trying it still won't work.. I just got the phone yesterday (First time BlackBerry user

)
The problem is that when I connect my phone to my computer, it recognizes the device, but not as an external device.
I have:
Blackberry Pearl 8130 (Verizon)
O.S. 4.5.0.175
4 GB Micro SDHC
-The media card settings are on:
Media Card Support: On
Encryption More: None
Mass Storage Mode Support: On
Auto Enable Mass Storage Mode When Connected: Prompt (I have tried it on Yes)
-My phone recognizes the SD card because it shows how much space is left on the card.
-I have formatted through the phone
-I have removed the battery for more than 5 minutes
-I have turned the phone on and off.
-I have tried it with another 4 GB Micro SDHC and it's exactly the same.
-I have tried another wire.
-I have tried on another laptop.
-I have tried all USB ports on my laptop.
-The USB ports work fine with other things like USB drives and external hard drives.
-When I open BB Desktop Manager, it recognizes the device but when I go to device options it says "You need to turn on mass storage mode from the connected BlackBerry device to use this feature. This may require you to restart your device."
-It does not show up in "My Computer"
-When I put music and pictures onto the card itself (through a SD slot I have on my laptop) it shows up on my phone fine.
I would really like to find a solution but if no one can help me then I am fine with putting file onto the SD card itself, but how can I move apps and stuff from my phone memory onto the SD card? So far I have only downloaded the Weather Channel app and it's taken up almost all my phone memory. I can't seem to figure out how to make my phone use the external memory instead of the phone memory. Thanks if anyone can help!