|Knowledge Base - Delay in Webmail - turn off QuickSave feature|
|by Monica Brainard|
If there is a delay when working in Webmail, it's probably the Quicksave feature. To turn that off, go to Options|Display Preferences and look for the "QuickSave Auto Message Save and Recovery" section. Set "Message Save Frequency" to zero and click "Submit," and that should do it. (With the faster servers, the Quicksave functionality isn't really necessary anymore.)
As for the "default mail client" message, it sounds like the OS doesn't have a default mailer set. In Windows, that's Control Panel|Internet Options|Programs.