Hi. I'm new to this forum and I thought I could see what the problem is by posting a thread on here. So I'm using AE CS3... Yeah I know it's an old version but it's not really important. The problem is that when I finally finished my video, it will let me render it but when I play it back in Windows Media Player it plays very slowly. It doesn't match the RAM preview speed. I had the video set to 60fps. When I import it into Sony Vegas it plays at the exact same speed. I also tried chsnging the frame rate of the video and exporting it as mp4. I still get the same problem. Please can someone tell me how to fix this? I've had this problem for like two days already.