Apparently versions of flash player higher than 10 producen this problem. Then I did this.
1) uninstall the version of flash player (whatever be instaled) but the trick is make this with the uninstaller of flash, not from panel of control/install and uninstall program.
2) restart the pc
3) install versions not higher than 10 (in my particular case i used the version "10r42_34" and its worked really fine because it isnt so old, and its let me see videos on youtube for example)
4) run resolume and start to vjing with swf files.
here I let you the link where you can find this versions of flash player. Remeber, use a version not more higher than 10.