The video on which i am editing lags when i'm trying to edit it within the software (camtasia) after the video is published it runs smoothly as you can see on my YouTube channel (latest video). However i asked a few friends and they suggested it's because i have a slow computer and therefore the editing software lags. I was wondering if anybody has come across the same problem and new how to solve it other than getting a new computer and spending lots of money. Hope you guys can help because it is limiting me and becoming frustrating when it comes to editing, Hope you can help? thankyou