Display flickering

[Guest]

I've been having a problem with Windows as it goes into log in screen as it
starts going fuzzy and right side of screen mouse disappears. Has been solved
by replacing monitor (but not by sending tower back to be reconfigured).
However now seems to be occurring again intermittently preceeded by message
saying 'out of range'. Have wireless keyboeard and mouse if that is relevant.
Company have been completely useless in sorting out! Help! Any ideas?

 

[Guest]

You could try updating your video drivers and/or trying a different video card.