2nd time that a application dissapears on my phone?

[eddyknights]

this is the second time in a week where shazaam dissapeared on my phone and i had to re download it andf just now handcend.. does this ever happen.. it just dissapeared but the icon was on my homescreen but with the market logo and when i clicked on it , it didnt do anything wtf.. had to re download it

 

[eddyknights]

Never mind had to reboot and it popped up again weird sort of like it crashed but i did have to redownload shazaam a week ago, very odd