Acer Travelmate 5742Z
Windows 7 Home Premium
Fully patched and Video driver up to date
When laptop is rebooted or started the screen is 'on' but is just black with a mouse pointer. I cannot log on nor is there any response from keyboard strokes. I can move the mouse.
If I use LKGC or if I boot in to safe mode or using minimum screen resolution all is ok. In minimum screen resolution boot I can then resize the screen to normal.
disabled all non MS services
updated video driver
fully MS patched the machine
No errors in Event Viewer that I can see
any help gratefully received