When I power up the PC Avast icon in the start up tray is orange but after a short while, I get a red cross saying unprotected and then after about 15-20 secs goes yellow saying part protected and then further delay to go all green. I'm concerned that in this interim period I'm open to problems. It never used to do this. I also have Malwarebytes installed. Does anyone have any thoughts? I have done a clean reinstall of Avast but didn't help.