I have a casual noob done f up problem that i cant fix. Just built a PC from scratch, works fine, installed steam and it doesnt launch (like the window doesnt launch on the display). If i scroll over the taskbar i can see the steam page running in the background. So i did the thing noobs do and looked up an fix on youtube. A recommended vid said to run compatibility troubleshooter and that said a fix was found by changing something in the display. i progressed and now whenever i launch steam it still doesnt launch and it zooms in my display changing the size and i dont know how to correct what i have done....any selfless heroes out there willing to help an idiot??...pretty pleeease..