Steven,

I don't really have an answer, but I've got one database server monitoring all that uses a timer that fires every minute and it runs for days at a time without any firing problems.

>This is and old issue that I have asked before but have not been successful in finding an answer.
>
>I have a global timer in my app to monitor the app status. On some machines the app seems to go to sleep, the timer stops firing. If I start interacting with the app on these machines the timer will usually start firin again. I have noticed the interaction has to be more than just opening and closing forms. Not really sure what is going on.