Com Error on server

Yesterday i started getting server too busy errors on so开发者_C百科me websites we are hosting. So I logged on the server and took a look at the event viewer

about 4 time / minutes im getting this error :

Log Name : Application Source : Complus Event ID : 4689 error Msg : The run-time environment has detected an inconsistency in its internal state. This indicates a potential instability in the process that could be caused by the custom components running in the COM+ application, the components they make use of, or other factors. Error in d:\longhorn\com\complus\src\comsvcs\threads\stathread.cpp(300), hr = 80070008: CSTAThread: CoGetApartmentID failed

i am wondering if anyone ever got that kind of issue and if yes what is it related to / how can i fix it ?

thanks a lot for the help.