You can fix it by tweaking the hardware acceleration in your pc. First go to your display properties and click on settings > advanced tab > troubleshoot. And once you click onto that you'll see a slider hardware acceleration. You will probably see it set to full. Just move the slider down 2 notches down and make sure the “enable write combining” option is checked and hit ok. Reboot your PC and restart your Virtual Dj and you'll see everything works including all your FX plugins for your virtual DJ.
FOR ALL THE GUYS WHO HAVE VIDEO FREEZE ISSUES !
http://www.virtualdj.com/forums/88729/PC_Version_Technical_Support/FOR_ALL_THE_GUYS_WHO_HAVE_VIDEO_FREEZE_ISSUES__.html
can be hardware problem or related to Virtual DJ version
Performance Issues
http://www.virtualdj.com/wiki/Performance%20Issues.html
You can fix it by tweaking the hardware acceleration in your pc. First go to your display properties and click on settings > advanced tab > troubleshoot. And once you click onto that you'll see a slider hardware acceleration. You will probably see it set to full. Just move the slider down 2 notches down and make sure the “enable write combining” option is checked and hit ok. Reboot your PC and restart your Virtual Dj and you'll see everything works including all your FX plugins for your virtual DJ.