I've noticed questions in several threads on how to clean the Dalvik cache and what apps. will work . I've found that the simplest app. is Titanium Pro ($6.88) . You open the app. press the far left button on the bottom of your phone , select "more" and then select "Clean up Dalvik cache" . BAM !! You're done !! No searching for the cache or anything . Titanium Pro also offers complete backup and restore on command . It's a great lil app. Note: You must have root access in order to use this app. .