Nobody can even begin to guess without proper system information, comp settings, render settings, what footage was used and so on. Simply sounds like you used
a) MP rendering with incompatible effects and they don't render properly and
b) chose a render setting/ CoDec unsuitable for fluid playback on desktop
OS: Win 7 Professional
idk what u mean by PC setting so I'm guessing specs
Intel core i5
I recorded a game with Fraps it recorded it into a .avi
I did some slowmotion, glow, text, couple of Solids, mp3 music and I think that's it
Disk Cache: Read Only
Effects: Current Settings
Solo Switches: Current Settings
Guid Layers: All Off
Color Depth: Current Settings
Frame Blending: On for checked layers
Field Rander: Off
Motion Blur: On for checked layers
Time Span: Work Area Only
Frame Rate: I tried 100 but thought that was the problem so I changed to 59.94
I recorded the gameplay in 120fps
Post-Render Action: None
Depth: Millions of colors
Named as xkoyyyz.avi
Output Movie: Desktop
It Messes up after the render, Once I play it it doesn't do the glow effect and then after around 5 secs the music stop and it stays on the first text I put.
First, transcode your mp3 to a wav file. Mp3 audio is notorious for fouling up audio in AE. There is a lot of informatioin on this.
Second, make sure you are looking at the Active Camera in your Composition. That's the only camera that will render.
Third, what kind of AVI. I'll bet it's uncompressed and that will solve your playback problems. There are hundreds of avi formats. You should be using one designed for playback.
How do I look at the active camera?
And how do I tell if the AVI is compressed or not?
Sorry I have no experience with cc.
If you didn't change anything and used the Render Cue to render your file then the file is uncompressed.
Please go through the getting started materials. Get familiar with the composition window and the controls. You will not be successful using AE without some serious study.
What Rick said - yet another case of RTFM.