Well written software works in all operatiing systems without causing errors! For those who may hesitate about installing something onto their computer, realize that only poorly written software causes crashes and processing errors.
For example, many have expressed frustration with Mozy.com for their software slowing or even crashing Vista Professional (bsod when creating a volume shadow copy or using Mozy with antivirus). Other problems with Mozy may be related to the software in one form or another?
If an IT tweeks the operating system with scripts or other additional processes could this become an issue? These are just examples. Trying the product is the best way to find out how it works.
A 30-day trial allows for a good evaluation before total data backup implementation. This way you see all aspects of the product in a working environment.