Hardware troubleshooting and FAQs ← Knowledge Base Hardware troubleshooting Why is there color variance between the projectors? What is the IP range for the image alignment module and can it be customized? How do I deal with warranty and product defects? Why isn't touch working properly? How often should I change the projector dust filter? Can I connect a computer monitor to the PC connected to the projector? Can I connect my PC wirelessly to the projector? Can I use Span™ software with other interactive displays? Warranty, warnings and important information How long will it take to fix my defective product?