Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Mauled by Tiger

I upgraded from OS 10.2.8 and found the process miserable and extremely time-consuming. Due to some OS X10.4 Tiger incompatibility the new software could not be installed without doing an erase and install which is a a royal, data losing, full tilt reinstall of every application pain. Now with Tiger installed I can't use my SCSI port (which was installed by Apple when I bought my computer) without the system crashing (another incompatibility Apple hides from users). Even with hours of technical support I've found the upgrade installation to be a buggy, constantly crashing and uncertain process. Tiger seems particularly crash prone working in the Classic environment (9.2.2)O.K.,so now there's on screen widgets which seem like a gimmick to me. And a fancy finder function called Spotlight. Big deal. A month ago my computer was working fine. Now I'm on eggshells wondering what will go wrong next regreting I made this software upgrade.I really feel stung.