Help Power button only half shuts down phone

[nicksdarkroom]

With increasing frequency, pressing the power button on my HTC desire running Froyo only dims the screen, it doesnt put it into standby. This never happened until recently but is now quite a regular thing. In order to put it into stand by i have to press the button several times before it decides to do what I'm telling it to.

This is a worry, anyone else experienced the same?

 

[Mar]

Do you keep it pressed until the shutdown menu comes up?

 

[nicksdarkroom]

No, it typically happens when pressing the power button to wake it up just to check if i have any notifications. When i press it again to put it back to sleep the screen only half fades out