maddog27

Hope you can help with this problem,when i start my pc i get a a thick white line starting from the bottom left hand corner of the screen and going across to the right, as it gets half way across it changes into what looks like a barcode but without the numbers,pc then goes to log on page,i log on and my security tries to kick in (running pc guard from virgin broadband)then everything freezes,mouse will not work, i have to physically turn pc off and then start again,it usually takes three attempts to get pc up and running,therefore i cannot log off/turn pc off as i know i will get this problem again when i attempt to start pc.Thank you in advance. maddog27