Have been looking around, but unable to find something I like.  Basically, just want a program which will pop up with some specified alerts at certain times.  It should also be smart enough to pop up after the specified time if it hasn't before (ie, if I set the time to 7:30AM, but turn the computer on at 8:00AM, it should still pop up with the message).

Basically, something like Outlook's reminders, though without Outlook.  Have tried Mozilla Sunbird, but uses a bit too much RAM (don't really need something as fancy).


Thanks in advance :)