Error Loading SiSPower.dll

Hi, after installing a new Radeon HD 2400 Pro on my HP Pavilion, at startup I get the "RUNDLL Error Loading SISPower.dll The Specified Modual Could Not Be Found"

Now the old graphics device was intergrated in the SIS 760, so I don't think it's a virus or something like that, like my Google searches say it is.

I can just click OK and it's fine, just starting to get annoing.

Thanks for any help!