I recently tried to open some files on a cd about maya 6 in maya 5 and got a file read error, the same thing happened for every file I tried, even though I'd copied them onto my hard drive.. is there a compatability problem between the different versions of maya??? I presume Maya6 reads lower level files but does Maya 5 not read higher level files??

also I'd like to know if it's possible to have more than one version of Maya installed on a single computer?

any advice will be, as always greatly appreciated.. now I'm off to the dentist!!!! aaargh