Cache Not Compiling Follow-up

Hello,

I'm restating a new posted as its seems that the old was closed but still having problems.
as I mentioned in a previous post and with one of our clients, experiencing different crushing errors when running Crystal Reports and sometimes crystals running but not generating data...etc  and we are temporarily fixing them by opening the related classes in Studio and recompiling them and as i mentioned compiling them with $System.OBJ.ComplieAll("c-k-l") doesn't help and always had to recompile from Studio.
and following previous recommendations by purging cached queries from System management portal and also ran $SYSTEM.SQL.Purge() didn't and recompiling after that didn't solve the problem either !? and by the way other clients running the same version 2008 aren't having this problem, so any suggestions please?

Thanks Guys