I have paid, have a receipt and worked out how to load/install a mod. I cannot access any of the options on the Simulate tab. The options are all grayed out. What am I missing? OS Windows 7 64bit Firewall has been checked. (even tested exe with firewall off) The launcher is ver 0.537 and the update tab says the current build is version 49 with rFactor 2 version contained in this build 1.005.