Technology Errors

Embassy Security Center Error: This Fingerprint Is Already Enrolled, Cannot Enroll This Fingerprint

My Dell d420 came with a biometric fingerprint scanner which is configured using the Wave Systems Embassy Security Center. If you have recently reinstalled the OS on your laptop more than likely the operating system configuration is out of sync with the TPM(Trusted Platform Module) Security Chip. This means that the biometric security will work preboot however it will not work for Windows logon. So you will not be able to swipe your fingerprint and automatically logon to Windows securely and you will also not be able to lock your computer and log back into Windows by swiping your fingerprint.

Technology Errors

DivX Player .MKV Files: Audio Format Not Supported, Use KMPlayer Play .MKV Files Without Issues

I downloaded a video file the other day that had a .MKV file ending and was having a lot of trouble playing this file in the typical video players I had installed. Typically when all else fails I can use DivX Player and install an additional audio or video codec to play pretty much any video file with sound. This file was causing me a little bit more of a problem so I had to do some reading so below I explain some information I found, some things I tried, and the overall final step I took to play this .mkv video file.

Technology Errors

PostgreSQL Table Issue: Mduplicate key value violates unique constraint

It is possible for data within a PostgreSQL database table to get out of sync. When this happens it is possible for an attempt to be made to write data to a row in a table that already exists. This is being kept track of internally within Postgres by an ID of some sort and you can reset what the next ID that will be written to a row will be. Typically this will resolve your issue.

I received the below error in a Ruby on Rails application that was attempting to write data to PostgreSQL and at some point the data got out of wack.

Technology Errors

Internet Explorer Has a Black Line Over Favorites, Tabs, And Command Toolbar

Recently I launched Internet Explorer after rebooting my laptop computer that runs Windows XP and noticed that the third line of toolbars which includes the favorites, tabs, and command toolbars had a black line all the way across all of them. I was still able to click on any of the items including opening new tabs, selecting favorites, and any items in the command toolbar such as the home button, the tools button, etc.