It's possible you havent' got the latest non-critical Windows Update or the latest Quicktime (which also plays a role in WMVs, believe it or not).
It seems to be unique to your machine, since I'm not experiencing it -- so it's more likely related to your configuration than the program itself.
Thanks for your response!
It's most weird. It's only for some WMVs generated by imTOo's tools. I have opened the WMV in Premiere Elements as a clip, and have regenerated the WMV and the resulting file has no problems in the Elements Organizer.
Thus, it looks like imToo's tools use some special format of WMV which is perfectly displayable by Windows Media Player and Elements Organizer in Full mode but not in the standard mode. So, the Elements Organizer doesn't support all the formats perfectly.
All the best!
Okay, yes, that's an important detail, Jiri!
It could well be that imTOols uses a codec that the Organizer previewer can't read.
As long as the WMVs created by Windows MovieMaker or Premiere Elements display -- well, beyond that there are no guarantees for third party WMVs. Sorry.
Sure. It's kind of weird, but thanks a lot for your superb help.
Because WMV's can contain a lot of flags, like DRM, they can exhibit odd behavior, indeed.
Usually, AV files will display in their native resolution, i.e. in their set Frame Size/Aspect Ratio and with their set PAR (Pixel Aspect Ratio), but sometimes those flags are missed, or are altered by other programs.
Remember, WMV's are designed to be streaming delivery-only, and are not intended, or designed to be edited. Most NLE's (Non Linear Editors) will allow them to be edited, but will require extra processing to do so. As is mentioned, WMM is designed around editing that delivery-only format, but most others are not.
There are many other formats/CODEC's, that ARE designed to be edited by the vast majority of NLE's, such as DV-AVI Type II's.
The best workflow is to NOT bring WMV's into the mix, unless one is using WMM exclusively. Converting those to an easily editable format/CODEC will always be the best course of action.
This is superb answer. Thanks for all this!