I have a ThinkPad W530 running Windows 8.
When I switch from any darker application to any lighter application the contrast is off and takes a second or two to adjust back.
I can very clearly notice it adjust after alt-tabbing to one or the other.
Any ideas of what could cause this? My first thought is a laptop issue, but it could be something Windows 8 is doing to allow better viewing (after it adjusts it looks really good, the adjusting is just slow)