Help Interval

[Gremlin256]

I use Flikie Wallpaper HD for changing wallpaper. I have set the interval to 12 hours.. But it changes the wallpaper every 20-40 mins.. instead of 12 hours..

Any ideas? I also use internal Alarm clock and snooze says 10 mins but alarm goes off after 15 mins..

It is getting annoying..

Thanks for any ideas..