OK, I think we have a culprit here. I disabled TrendMicro antivirus, but that didn't work. I then added an exception for my GuildWars2 folder and continued to have antivirus turned off and then it worked. I then tried and enabled antivirus on trend Micro again, and it seems to be working correctly now. So, it does appear Trend Micro is causing the issue. Hopefully my exception for the folder will work, and Arena net can find a cause/fix for it.