In a perfect world (and this is not) a program like Poser5 would have no dependancies on other peoples code ... like display drivers, or hard drive systems or whatever. In that perfect world if Poser5 didn't work we could say with 100% certainty that the problem is withing CL's ability to fix. We don't live in that world. We live in a world where the end user machine (PC or Mac) is running millions of lines of code from hundreds of developers providing support for thousands of API services. I have seem 3DS Max not be compatible with the default installation of certain printer drivers, for example. I have seen Mac software that didn't run if you had a particular brand of USB hard drive installed. OF COURSE the problem is usually with the vendor code, and of course most of the Poser bugs come from code that CL shipped. That is not my point. My point is that it is FLAT OUT impossible to write a non trivial program that will work on 100% of the client environments that meet your minimum specs. That means on some machines the answer is "check your drivers" on others it is "uninstall, reinstall" and on others it is "sorry, we can't help you". Again, this is not to absolve CL of the bug problems that are their fault - but it is silly to think that there will never be a situationw here a software vendor simply has to say "sucks to be you". Get a refund.