you should try and install mdk9.1, it has greater hardware support then 8.2 and the install is very easy.
then secondly. it does look like you are not using the nvidia driver but the nv driver, have you edited the /etc/XF86Config-4 file? changed nv to nvidia?
sorry: but try to post the config and log file as attachment, it is easier readable, probably something is seriously messed up in the config file.
and I do think that either upgrade or freshly install (and i'd prefer freshly install) would benefit you
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