Erik and Bob tackle your tough computer questions. City of Chicago may charge up to $500 for texting in a crosswalk. New version of Apple iOS has problem texting the letter "i," but a patch is coming soon. Daimler unveils electric-powered school bus. You might be able to charge your next electric vehicle while on the road, reducing "range anxiety." A caller has problems with "incompatible cartridge" errors on his HP printer, plus has problems printing with his iOS device in iOS 11. Troubleshooting graphics card switching issues in a Dell laptop. What is a "PUP" program identified by a malware scanner, plus how to fix software problems in the Google Chrome web browser that might be caused by malware. Using the OpenDNS service to surf the web with more safety. Google "Project fi" may be a less expensive alternative to costly cellular data services