you provided no information.
So the Intel support engineers can have more information about your system, Download, run, and save the results of this utility as a text file:
Then ATTACH the text file using the instructions under the reply window ( Drag and drop here or browse files to attach ).
Your HD2500 graphics are discontinued and not supported.
What do you mean "colours are wrong?" Provide a photo as it sounds more like a hardware issue to me.
rodmur, Thank you for posting in the Intel® Communities Support.
Just to let you know, the Intel® Core™ i5-3470 Processor is under status of: End Of Interactive Support / Discontinued, as you can confirm in the following link:
As an option you may want to try our Discontinued Products Community to get recommendations from fellow community members.:
You may also find the Discontinued Products Website helpful to address your request:
Intel Customer Support Technician
A Contingent Worker at Intel