Unable to update to the latest Virus signature database

I am currently running the latest ESET NOD32 Antivirus 3.0.566.0 & have encountered difficulties in updating to the latest Virus signature database 2661 (I have Virus signature database 2659 on my PC).

Whenever I use the Manual Update option (I have problem using Automatic Update as reported earlier, Marcos supposes to check with the developer) to update the database, it keeps downloading these two files:

em002_32_l1.nup 541KB
em002_32_l2.nup 84KB

After update, it shows the remark "The program modules have been updated." (The fact is I am already using the latest 3.0.566.0)?

http://img401.imageshack.us/img401/22/45036214zr5.jpg


Here is the Event Log:

11/16/2007 9:06:24 AM Kernel The program modules have been updated.
11/16/2007 9:06:06 AM Kernel The program modules have been updated.
11/16/2007 9:05:46 AM Kernel The program modules have been updated.
11/16/2007 9:05:25 AM Kernel The program modules have been updated.
11/16/2007 8:57:01 AM Kernel The program modules have been updated.
11/16/2007 8:56:28 AM Kernel The program modules have been updated.
11/16/2007 8:50:40 AM Kernel The program modules have been updated.
11/16/2007 8:49:07 AM Kernel The program modules have been updated.
11/16/2007 8:38:55 AM Kernel The program modules have been updated.
11/16/2007 8:38:30 AM Kernel The program modules have been updated.

Please investigate.