Hello,
I'm experiencing the same problems with .pbo files when patching the game, though I turned off my antivirus (Kaspersky) as recommened. I already tryed to patch it by using 1.0-1.7 patch and combination of 1.0-1.5 and 1.5-1.7 (checked with nero MD5 verifier). Is there anything else I can do to patch the game?