If you're using the device moderately, three days isn't too bad.
Kinoma has some problems playing sound with videos on Clies. Make sure you've installed the most recent version and that they support sound with video for the file format you're using.
Make sure your photo format is supported by the software installed on your Clie. If the photos on your Memory Stick are JPG format, you can try a photo viewer like Acid Image to see if that works for you.