A yellow triangle with a vertical black line in it has appeared on my toolbar and when I left or right click on it it does nothing (don't think it's an exclamation mark)... just wondering what the hell it is. My screen seems to have stretched slightly vertically too. Some updates did run last night, maybe it's down to that? (dunno)
do you mean in the taskbar? (bottom right) if it is it could be an exclamation mark even if it doesnt look like it. Go into your control panel and device manager and see if anything has the same symbol showing there.
does it say anything when you hover over it or right click it? as for screen being stretched >> you should be able to fix that bit via control panel >> display settings
Please download SmitfraudFix (by S!Ri) Extract the content (a folder named SmitfraudFix) to your Desktop. Open the SmitfraudFix folder and double-click smitfraudfix.cmd Select option #1 - Search by typing 1 and press "Enter"; a text file will appear, which lists infected files (if present) If its dodgy, this will find it.