Help with Atmosphere Deluxe

Recently installed Atmosphere Deluxe,only when i use it all the CPU is taken up, when i return to my pc Atmosphere Deluxe has stopped running, i also have an error message concerning my antivirus program, saying something along the lines of ' corrupt or damaged file'. Why is this? How can i stop it taking all the CPU

 

O.k its xp home, sp3, Avira free edition version 8.1.0.331. When i use the program, it crashes during the night, when i look whats going on, i see an error message saying 'the application module C:\programfiles\Avira\Antivirpersonaleditionclassic\rcimage.dll cannot be found or has been destroyed. The AVWSC.exe cannot be started. Please check your installation.' The atmosphere program has stopped, my antivirus is fine when i use it too. I dont have it on sheduled scans either.