same thing happens to me since yesterday no scrolling , i only have 175 pix
Ok I plugged it into the PC in USB mass storage mode n just moved some of the pix from Camera Roll into another folder. Unplugged n opened gallery>camera roll. Scrolled with two hiccups the first time, not again after and no forced back outs. Can it be the Camera Roll gets too full so I should keep folders smaller? All Pix might freeze still...yup. Think its time I cleaned house. Disappointing considering they're all on the 16GB card that can hold it but the gallery doesn't like em all. Dunno why anyone else's would do it with so few pix, sorry dude
I found a link ( http://www.droidforums.net/forum/droid-x-general-discussions/65496-droid-x-gallery-issues.html ) that may help
you with your issue. Let us know how it works for you.