Log4net stopped logging from some assemblies.

[Ingeniouz]

Hi,
In my project which involves a lot of assemblies, I have been using Log4net for more than two years without any problems. The assemblies were compiled in VS2005. Recently some assemblies stopped logging and the only change that these projects went through was, they were opened in a machine which has VS2008 installed on them. Does anyone know what settings I have to change to resume logging from these assemblies again. I tried compiling the projects with older version of csproj files still no luck. I tried enabling internal debugging on log4net but I couldnot get that working, here is my config file. Using log4net version 1.2.10.0.

<log4net debug="true">
    <appender name="FileAppender" type="log4net.Appender. FileAppender">

        <file value="log-file.txt"/>
        <appendToFile value="true"/>
        <lockingModel type="log4net.Appender.FileAppender+MinimalLock"/>

        <layout type="log4net.Layout.PatternLayout">
            <conversionPattern value="%date [%thread] %-5level - %logger{1}.%method - [%message]%newline"/>
        </layout>
    </appender>
 .
.
.
.
.
  <logger name="MyAssembly1">
    <additivity value="false" />
    <level value="ERROR"/>
    <appender-ref ref="EventLogAppender"/>
  </logger>
  <root>
    <level value="ALL" />
    <appender-ref ref="FileAppender" />
  </root>
</log4net>


Thanks,
AK.