im having trouble clearing my sd card. I rooted my droid this past monday and have been switching around different ROMs such as ultimatedroid, bugless beast, and smoke glass. and ive noticed that the available memory on my 16gb sd card keeps decreasing. For instance, it would go from 8.04gb available to 7.96gb. i would try deleting items from my sd card by means of pc, and even though the items were taken off the sd, the memory would remain the same. in desperation, i unrooted my droid and tried clearing my sd, but my available memory still remained at 7.96gb. any suggestions?