OK. Where would I find the included colour profile in photoshop? The help page of lightroom says that sRGB is used automatically for web export and I also tried to export with manual settings
http://help.adobe.com/en_US/lightroom/using/WS268F3399-80B2-4169-A598-04C7F769FFA0.html
There does not seem to be an option that I might have misconfigured or so.
Hm.
Thanks for any help.
Stefan