4) Find Reserved Pictures Memory, Convert Value to Kilobytes If Applicable

(Note: Step Four only applies to users with BlackBerrys that have internal cameras. Users without digital cameras should skip this step and move on to step five.)

From the BlackBerry home screen, click the Media icon to launch your media folder. On the main screen--the one that displays additional icons for Music, Ringtones, Pictures, Video, etc.--click your BlackBerry Menu key and select Options.

Roughly halfway down the Media Options page, you'll see a value in megabytes (MB) for Reserved Pictures Memory--zero, two or five. Multiply that number by 1024 to convert it to KB, and record the result.

5) Calculate the Total Memory in Use

Next, you'll need to calculate the Total Amount of Device Memory In Use. To do so, simply add the values you recorded for Total Application Space, Total Size and, if necessary, Reserved Picture Memory.

6) Determine Specific Amount of Free File Memory

Finally, you need to subtract the Total Amount of Device Memory in Use from your BlackBerry's Total Flash Memory.

If you're using a BlackBerry 8xxx series handheld, your Total Flash Memory is 62500 KB, according to RIM--unless you're using the recently released Curve 8330, which has 94500 KB of flash memory.

If the number you come up with for Specific Free File Memory is less than 5120 KB, you'll want to visit our BlackBerry Memory tips page post haste.