I'm a fairly experienced user and have bought a template from one of the Royalty Free sites.
However, as in the title, AE (CS5 and a CC trial) both crash when I go near some of the compositions. I say 'some' becasue it only seems to be a few that are problematic.
I've downloaded the zip again and tried all sorts like renaming the project, emptying the cache, using the Collect Files option to try a new project and downloaded a CC trial but all the same.
What kind of crash are you talking about? Does AE just quit or do you get an error message? What does the crash log say?
Does it crash if you have caps lock on?
What effects/plugins are in the crashing comps?
What happens if you import that project into another project?
Which template was it?
What graphics card do you have? What driver are you using with it? What OS? What are your computer's specs? Have you installed any third-party codecs?
Answers to those questions along with all this information would be helpful in troubleshooting.
Would you give me a link to the template that is causing this problem?