Server Does Not Support GD Image Library

[Somer]

I have been able to upload files just fine for the past 4 months or so, but today when I try to upload any files i get the message:

PHP running on your server does not support the GD image library,
check with your webhost if ImageMagick is installed

No changes had been made to the configuration or to my server, so I am not sure what may be causing this. I am not that great with programming and such, so I have no idea how to install ImageMagick to my server. Is there anyway to get around it?

[hyperion]

This usually happens when your host upgrades PHP but forgets to enable GD, or forgets to compile GD with the JPEG library.