I booted LMDE x64 today, and upon entering in my password at the login prompt the screen goes black momentarily before returning me to the login prompt. Initially I thought there may be a problem with GDM, so I removed all configuration settings and tried again. No go. So I went a step ahead and removed GDM completely and then re-installed it. This also made no difference. Can someone point me in a direction (which log file to check?) or possibly someone else has encountered a similar problem? I found nothing while searching the forums (aside from others with GDM problems). I appreciate your time!
Edit: I am NOT using any Nvidia drivers.