Help Desire notifications issue

[JimmyBanks]

My desire will not always ring the sms ring notifier when i recieve texts, it annoyed me so much that i decided to do a warranty swap, and the new one does the same thing!

is this a standard android thing? it seems to me that if i have recieved or sent a text to somebody within 30 minutes, it will not ring, as though it expects me to be hovering over my phone staring at it for a reply, is this a normal issue? and is there a way to fix it?

HTC desire 2.1 on telus

 

[dervturbo]

I have only found that if I read a text then turn the screen off with the power button it will not notify me because the message window is still open. If I press the home screen and return to the "desktop" or whatever it may be called on htc sense I will get alerts as normal.