Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Doesn't Work On Vista 64 Bit!!!!!

I ordered the Ectaco C- Pen 20 for school work, thought it was a great idea. But, after spending 2 days attempting to install it on my Vista 64 bit OS I found out that the c-pen, although physicaly is the same, when it is sold from different companies it works with their own software. So, the ECTACO brand pen does not work on Vista 64 bit and I could not get it to work properly with Vista 32 either, although the tech told me it would if I downloaded updated software: It didn't even with the new software. So I was forced to return the pen. But do not be fooled there are different software manufacturers that all sell the same product: be sure you know your operating system and then find a software that works for it, because the software is not interchangeable between manufacturers... I tried!