When any video media is imported into Premiere elements 10 I get a white screen (i.e. no video) and only the audio plays. It does not matter if the files are Mpeg4 or mts. I have routinely used Elements 9, 10 & 11. This is a new 64bit machine and this is the only time this has occurred.
Welcome to the forum.
Good luck, and let us know a bit more please.
If you are one of those Premiere Elements 10 users whose computer works with a NVIDIA video card, please read through the thread in which I have been compiling "what has worked for others" related to this Premiere Elements NVIDIA video card display problem. If you have NVIDIA video card and you can find it mentioned in the thread, please try the roll back information given by another version 10 user with the same card as yours.
We will be watching for your results.