You can tell the Ops console to clear the cache everytime you open it! Just change your shortcut - and add the /clearcache parameter:
"C:\Program Files\System Center Operations Manager 2007\Microsoft.MOM.UI.Console.exe" /clearcache
Keep in mind - this is no longer recommended post SP1 RTM..... just when you are having a problem. By using this setting on all your users, you will experience a bigger hit on the RMS because we arent using the cache effectively.