I bought a new Thinkpad Edge and a ThinkPad USB Port Replicator with Digital Video (#45K1611), but I do not use an external monitor. Each time starting Win 7, the display-settings are switching to the "Extension-mode" - but I don't use an external monitor and I have to apply the correct setting by pressing Win+P and selecting "Computer Only" (see screenshot).
Starting Win7 with the port replicator unplugged, the display settings are correct. How can I solve this problem? I don't want to correct the settings each time.
Sorry for anwering so late and thanks for your reponse. I checked this and found a corresponding adjustment called "Boot Display Device" (in BIOS under Config / Display), but it had been already set to "ThinkPad LCD". But this was the only one in Bios, which have to do with Display. I also tried to solve the issue by writing a short batch-file to set display-mode each startup. But it doesn't work, because after executing my batch-file, windows recognizes my portreplicator and changes the display mode back to "Extended".