Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fails when starting from a cd

Overall the mouse works as well as the optical Logitech I was using. However I found a huge flaw in the way the MX 1000 works. The mouse does not work at all when you need to start from a cd (such as Disk Warrior) or when you use the option key at startup (on a Mac) to choose what disk to start from. In order to do anything in these cases you need to connect a different mouse. This is entirely unacceptable to me and I am returning the MX 1000. I contacted Logitech support and they tell me that is not a feature of the mouse. They also sounded rather unsure of what they sell. To have software that will not support the mouse use at these times is completely unacceptable.