Problems loading a track/sample

Having trouble with LMMS? Ask about it here.
Upon loading a track, on the sampler, or the plug in, it simply disappears.

I don't know how to put photos, on this message. But, it's really as simple as I said. I open lmms, left click on the sample track space; left click on this selected space; then, I select my file .wmv, .mp3, and it disappears.

Same thing with the audio filer processor, the difference being, it does not load the file, simply - and the name of it stay put in the audio file processor.
First off, Welcome to the Forum BuddhiLW !
Here are all important links:
http://lmms.io/forum/viewtopic.php?f=1&t=4740
-A few rules and useful forum instructions -Including how to upload pictures :)
I select my file .wmv, .mp3, and it disappears.
Ye, you have chosen two formats that are not supported (yet)
Lmms supports:
* wave
* ogg
* ds
* flac
You can use f,i. Audacity to convert from any format to a supported one