My trouble with the ARCA patch turned out to be faulty hardware. Got a new mobo installed and it patched without trouble. It is well worth patching it, so as to be able to join on-line servers.
NOTE: Happened to me and I saw it on another forum: if you enter a server and can view other drivers' cars but not select one for yourself, there is a setting in the on-line section labeled 'enable camera view' or something similar to that. Make sure it is turned OFF.
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4H_V-man
NEW System Specs:
MSI 870 A-G54
AMD X4 Phenom II @ 3.4 ghz
8 Gb DDR3 1333 RAM
1 Tb Western Digital
250 Gb Western Digital
320 Gb Seagate
Radeon XFX 5850 graphics
Thermaltake 650 Modualar power supply
Thermaltake Element V full tower