PC Guard

[perose]

I very stupidly uninstalled my McAfee yesterday and installed Virgin Broadband PC Guard, thinking I use Virgin I thought it would be best. However now when my computer goes on to screensaver I cannot get it back. It is not my mouse, that is cleaned and working well. The only way I can get it back is to Ctrl.Alt.Delete, which is very tiring each time. Is this because of my security software?