Help apps not installing

[mjnmanu]

Hi
can anyone tell me why when I have downloaded apps from Android market not all of them will install. But when I use MENU / REMOVE APPS They are there to be removed.

I have HTC DESIRE HD.

 

[karandpr]

What kind of apps ?
Themes and widgets aren't usually shown in app drawer.

 

[MyNamesTooLong]

Dont forget live wallpapers, keyboard skins etc...

 

[RyanB]

Which apps are you finding to behaving that way? Listing them will help others explain their behavior to you