Ever had an Adobe After Effects render that just wont render because it keeps crashing? I had one recently, and I found this video tutorial on CreativeCow that solved my problem - tutorial
Essentially what you do is hold down the SHIFT key, while going to Edit>Preferences>Click on any preference....and the secret menu appears! There is then a menu that enables you to purge the RAM cache. However, be warned that this will slow the render down. A slow render is bettwer than no render though! Luckily the tutorial's author Aharon has another trick that can speed renders up.
(I will be going into hospital for a while, so this will probably be my last post for the next week...take care)