[SOLVED] pixelated screen after installation

Hello,
I just installed Mageia 2 (32-Bit) on my HP 635, dual-patition with windows xp. But when boot it, i only get a pixelated screen wher I can't recognis a thing. I tried to refresh the installation with a FTP-connection, but nothing changed. I dont know what to do, perhaps it has to do something with my graphic card (AMD Radeon HD 6320).
I just installed Mageia 2 (32-Bit) on my HP 635, dual-patition with windows xp. But when boot it, i only get a pixelated screen wher I can't recognis a thing. I tried to refresh the installation with a FTP-connection, but nothing changed. I dont know what to do, perhaps it has to do something with my graphic card (AMD Radeon HD 6320).