This week's TidBITS Talk discussions cover several new topics. On the troubleshooting front, readers diagnose why Microsoft AutoUpdate is repeatedly pushing a conversion utility, why Magic Mouse tracking isn't as good when connected to a Mac Pro, and whether something is wrong with an iMac's FireWire bus. Suggestions are also offered for building a Mac help desk for a school, previewing photos on a virtual wall, and obtaining early versions of the Mac OS. We also look at the end of the Apple v. Psystar case and the ongoing costs of using Macs in the office versus Windows PCs.
Office Machines -- Companies often don't consider Macs for their businesses because of the higher initial cost compared to cut-rate Windows PCs, but readers point out numerous other factors that go into a corporate purchasing decision such as buying anti-virus software, paying for service calls, and so on. ( )