switching between movies

[Jason Tangen]

Thanks so much for your suggestions. I tried using the two if 
statements as well as switch resulting in no noticeable difference. 
While omitting lockscreen seems to have expedited things a bit, did 
result in a less than smooth transition between movie frames. Keeping 
lockscreen in makes it look as though there's a brief pause during the 
transition rather than an obvious switch between movies. I suppose I 
can deal with the brief pause, but I would have thought it would be 
possible to get rid of any delay whatsoever. Any other suggestions are 
welcome. Thanks again!

Jason