email autosave

[mcamca]

I'm new to DROID (and coming from BB) so I hope I'm expplaining this right...
I'm using my aol account through the email "widget". When a call, text message, or email comes in while I'm composing an email the email is lost. My message isn't automatically saved to my drafts. Am I doing something wrong? Or is there a setting that I haven't set? Please help. This is costing me a lot of time and frustration as I keep re-typing important emails. Thanks..