I inherited a VDI in our shop to work on a 92x. There is no manual with the VDI. We have a Toughbook that links to it. It is requesting a software update. How do you update the VDI or laptop/pc software? It appears to work since I could read/clear codes, but have no idea how to run tests. Specifically EVAP p0442/p0456. Need to know how to close purge for testing, etc.. Any help would be appreciated. A manual or link to one would be awesome. Software update link even better.